1.Breast cancer in the Philippines: A financing cost assessment study
Madeleine De rosas-valera ; Julienne Clarize P. Lechuga ; Lourdes Risa S. Yapchiongco ; Necy S. Juat ; Mary Juliet De rosas-labitigan ; Maria Lourdes E. Amarillo ; Leo M. Flores ; Maebel Audrey R. Joaquin ; Adelberto R. Lambinicio
Acta Medica Philippina 2025;59(Early Access 2025):1-9
OBJECTIVES
The aim of the study is to estimate the cost of breast cancer diagnosis, treatment, and management in the Philippines. Specifically, it aims to identify the resource requirements and interventions related to breast cancer diagnosis, treatment, and management, measure resource volumes (number of units), learn to value resource items (unit costs), and determine the total cost of treatment per disease stage.
METHODSThe study covered nine tertiary hospitals, seven of which were government hospitals and two were private hospitals, with all tertiary hospitals providing breast cancer services and accredited by Philippine Health Insurance Corporation (PHIC or PhilHealth) for the Z-Benefit Package. Interventions and services related to breast cancer included radiographic procedures, laboratory and imaging tests, chemotherapy drugs and medications, medical and surgical supplies, surgical rates (for breast surgery), accommodation, staff time and salary/professional fees, and other procedure fees. The study conducted in 2022, examined cost prices of breast cancer interventions and services from stage 1–3B.
Purposive and convenience sampling were used based on PhilHealth accreditation and willingness of hospitals to participate in the study. The study conducted a focus group discussion with oncologists, radiologists, anesthesiologists, and other health care providers to validate the clinical guideline used and to solicit inputs to the costing design, analysis framework, and tools for data collection. Data collection of financial cost information (charge price) was conducted using a set of costing matrices filled out by the various departments of the hospitals. Costs and median rates were calculated across hospitals on diagnostics and imaging tests, surgery costs of both public and private facilities, medical treatment, and radiotherapy.
RESULTSBreast MRI, Breast Panel, and Chest CT Scan are the top 3 most expensive diagnostic procedures ranging from PhP 8,102.00 to PhP 9,800.00 per procedure. Surgical procedures for breast cancer at private hospitals and public hospitals showed huge differences in costs. The cost of a cycle of chemotherapy ranges from PhP 596.70 to PhP 3,700.00 per session, while the cost of targeted therapy can cost up to PhP 46,394.21 per session. A year of hormone therapy ranges from PhP 3,276.00 with the use of Tamoxifen, and up to PhP 68,284.00 with Goserelin. Aromatase inhibitors such as Anastrozole and Letrozole cost from PhP 18,000 to PhP 36,000, respectively. Multiple cycles depending on the diagnosis are prescribed per patient and used in combination with other chemotherapy medications or other therapies such as targeted therapy and hormone therapy are usually taken daily up to 5 to 10 years. Conventional radiotherapy can cost up to PhP 88,150.00 covering 28 sessions, CT simulation, and CT planning.
CONCLUSIONThis cost study provides relevant information and better perspective on benefit development for the PHIC, policy development for Department of Health on where and how to focus their support for the patient’s financial preparedness to address medical and f inancial catastrophes.
PhilHealth needs to guide the health care providers of their costing method and to develop their own integrated, interoperable, and comprehensive cost data library.
It recommends that the government allocate budget and cover for screening and assessment for earlier stage diagnosis of patients and lower health expenditure costs on cancer treatment.
Human ; Breast Neoplasms ; Drug Therapy ; Chemotherapy ; Mastectomy ; Radiotherapy ; Radiation Therapy
2.Evaluation of medication errors among inpatients in a tertiary government hospital’s pulmonary medicine service: A cross-sectional retrospective study
Judith L. Abanuales ; Jan Redmond V. Ordoñ ; ez ; Saandra Beattina B. Salandanan ; Charles Mandy G. Aryan ; Rubina Reyes-abaya
Acta Medica Philippina 2025;59(9):40-61
BACKGROUND AND OBJECTIVE
Medication errors pose substantial risks in hospitals, particularly concerning patient safety. These errors, occurring throughout the medication use process, are one of the most common causes of morbidity and mortality in clinical practice. In the Philippines, there is a lack of evidence on the prevalence and effects of medication errors, emphasizing the need for further investigation. This study evaluated the prescribing, transcribing, and monitoring errors among inpatients under the Pulmonary Medicine Service of the Department of Medicine in the Philippine General Hospital.
METHODSThis cross-sectional retrospective records review used the total population purposive sampling technique to examine eligible charts of inpatients with asthma and/or COPD from August 1 to December 31, 2022. The frequency, type, and severity of medication errors were determined. Linear regression and Cox proportional hazards models were used to examine the relationship between patient-related factors and medication errors, and length of hospital stay and mortality.
RESULTSFifty (50) out of 226 medical records were processed and analyzed. Included patients were predominantly older male adults. More than two-thirds of the patients were diagnosed with COPD while approximately one-fourth suffered from asthma. All patients were practicing polypharmacy and the vast majority presented with comorbidities. A total of 6,517 medication errors, predominantly prescribing errors (99.1%), were identified. Despite the high prevalence of medication errors, the majority were classified as “error, no harm” (98.8%), while only 1.17% were deemed as “error, harm.” As the frequency of prescribing errors increases in the power of three (rough approximation of e), from 1 to 3 to 9 to 27, etc., the expected hospital stay increases by 2.078 days (pCONCLUSION
All eligible patient charts had at least one medication error, with the majority being prescribing errors. Among the variables, prescribing errors significantly affected the length of stay, while severity of transcribing errors had a marginally significant effect. It is essential to develop comprehensive education and training initiatives and adopt a systematic approach to mitigate medication errors and promote patient safety.
Human ; Medication Errors ; Patient Safety ; Pulmonary Medicine
3.Comparing long term treatment outcomes of patients with acute myelogenous leukemia who received doxorubicin and cytarabine induction chemotherapy compared with first-line regimen idarubicin plus cytarabine: A retrospective cohort study
Jacqueline Rose E. Agustin ; Ma. Rosario Irene D. Castillo ; Jomell Julian
Philippine Journal of Internal Medicine 2025;63(2):85-90
RATIONALE AND OBJECTIVES
The burden of acute myeloid leukemia (AML) is felt worldwide with increasing number of diagnosed cases. A recommended treatment option for a longer remission is hematopoietic stem cell transplantation after chemotherapy with cytarabine and an anthracycline antibiotic, either Idarubicin or Daunorubicin. In the Philippines, Doxorubicin, a cheaper and more accessible option for chemotherapy among those who have financial incapabilities. It is no longer part of the National Comprehensive Cancer Network (NCCN) recommendation for use however; it remains to be part of the Philippine National Clinical Practice Guideline in the treatment of AML. This leads us to wonder what the difference in outcome of patients who have received doxorubicin compared to those who received Idarubicin as induction chemotherapy.
RESEARCH DESIGN AND METHODOLOGYThis is a retrospective cohort study. Data was collected through chart review of AML patients admitted for induction chemotherapy. Descriptive statistics was used to analyze the sociodemographic and clinical profile of patients. Survival analysis was done using the Kaplan-Meier computation. The t-test for two proportions was used to compare outcomes between the two groups.
RESULTSThis study included 65 participants, 55 received idarubicin and 10 received doxorubicin. The average age of diagnosis in the Idarubicin group is 41.38 years, and 34.9 years in the Doxorubicin group. Majority of participants are females (58.18% vs 80%) and married (67.27% vs 60%). They are predominantly nonsmokers (89.09% vs 80%), with no maintenance medications (61.82% vs 70%), and comorbidities (70.91% vs 90%). There was no significant difference in the median overall survival of both groups (507 days vs 428 days, logrank test = 0.74).
DISCUSSION AND CONCLUSIONOutcomes of this study leads us to conclude that Doxorubicin is not inferior to Idarubicin in terms of survival.
Human ; Acute Myelogenous Leukemia ; Leukemia, Myeloid, Acute ; Idarubicin ; Doxorubicin ; Induction Chemotherapy ; Survival
4.Prevalence of menopausal symptoms among young gestational trophoblastic neoplasia survivors and its relationship to their health-related quality of life
Victoria May Hembrador Velasco-redondo ; Maria Stephanie Fay Samadan Cagayan
Philippine Journal of Obstetrics and Gynecology 2025;49(2):114-120
BACKGROUND
Since the advent of chemotherapy, cure rates for gestational trophoblastic neoplasia (GTN) have improved significantly. With increased survival, patients must cope with long-term sequelae of their treatment, including early menopause. Unlike natural menopause, treatment-induced menopause may cause a sudden and dramatic decline in estrogen, which can lead to more severe symptoms.
OBJECTIVESThis study aimed to evaluate the prevalence of menopausal symptoms among young GTN survivors and to determine the impact of these symptoms on their health-related quality of life (QoL).
METHODOLOGYNinety GTN survivors (RESULTS
A total of 90 patients were enrolled in the study with a mean age of 33.06 years. Majority (81.1%) reported at least one menopausal symptom. The most prevalent symptoms were psychological symptoms, followed by somatic, then urogenital problems. Among those with an intact uterus, 8.2% reported permanent amenorrhea. Only Stage III/IV and the presence of total hysterectomy were significantly associated with menopausal symptoms. The presence of menopausal symptoms was significantly associated with poorer health-related QoL among the respondents.
CONCLUSIONMenopausal symptoms are prevalent among young GTN survivors, and these negatively affect their health-related QoL. Emphasis should be placed on recognizing and addressing these symptoms. Adjunctive procedures, especially hysterectomy, should be carefully considered because these are significantly associated with menopausal symptoms.
Human ; Chemotherapy ; Drug Therapy ; Gestational Trophoblastic Neoplasia ; Gestational Trophoblastic Disease ; Menopause
5.Competency of oncology nurses in the safe handling of chemotherapeutic drugs
Vanessa Joy P. Gasat ; Aldren R. Remon
Acta Medica Philippina 2025;59(11):63-74
BACKGROUND
With the increasing cancer burden in the country, nurses’ exposure to chemotherapy is inevitable as they belong to the workforce responsible for its preparation, administration, and disposal. These drugs are hazardous and necessitate special precautions to avoid direct exposure. Essentially, their competency must be aligned with the recommended safety guidelines to maintain quality patient outcomes while ensuring their safety.
OBJECTIVEThe primary aim was to determine the competency level of Oncology nurses in terms of knowledge, skills, and attitude. The results were used to develop a training program framework for competency enhancement.
METHODSA descriptive correlational quantitative study was utilized. The study was conducted from December 2023 to February 2024 across three regions in Luzon, Philippines. The study included 203 Oncology nurses who fit the inclusion criteria. Data were collected via a four-part online questionnaire. Data were analyzed using frequency distribution, mean, standard deviation, and Pearson and Spearman correlation coefficients.
RESULTSOncology nurses exhibited excellent knowledge (x̄ = 16.18) and skills (x̄ = 3.86) but only fair attitudes (x̄ = 2.92). Knowledge correlated negatively with skills (ρs = -0.45, pCONCLUSIONS
Oncology nurses demonstrate comprehensive knowledge and accurate and efficient skills but maintain a neutral attitude toward handling chemotherapeutic drugs. These results relate to the complex interplay between the competency dimensions. There are still gaps and areas needing improvement that should be addressed and supported to align their competencies, especially along the skills and attitude dimensions. Training programs anchored on evidence-based practices and regulatory standards, and promoting a favorable practice environment are vital for their competency development.
Human ; Chemotherapy ; Drug Therapy
6.Predictive importance of weight during neoadjuvant chemotherapy on pathologic response and survival outcomes in patients with breast cancer
Philippine Journal of Internal Medicine 2025;63(3):89-97
OBJECTIVES
The influence of weight change on the response to neoadjuvant chemotherapy (NAC) among adult Filipino patients with breast cancer remains unclear. Currently, there has been increasing evidence that weight gain during NAC is associated with increased recurrence risk and decreased survival. This study aimed to investigate this relationship and identify significant predictors of pathologic complete response (pCR), overall survival (OS) and disease-free survival (DFS).
METHODSThis is a retrospective study using data from 52 female patients who received NAC for stage II or III breast cancer and had complete records of weight before and after NAC. Significant predictors of pCR such as host factors and tumor characteristics and associations between weight change and pCR, OS and DFS were examined using univariate and multivariable logistic regression analyses.
RESULTSThe average weight of all patients before NAC was 57.0 kg while the average weight of all patients after NAC was 59.5 kg. The average BMI of all patients before NAC was 25.8 kg/m2. In total, 29 patients (55.8%) were classified in the overweight/obese (OW/OB) group, and the rest were classified in the normal weight/underweight (NW/UW) group. The pCR rate was 51.3% in the OW/OB group versus 48.7% in the NW/UW group (p = 0.11). Initial BMI was a significant factor for achieving pCR (hazard ratio, 3.85; 95% confidence interval [CI], 1.72-8.60, p = 0.001), suggesting that a higher initial BMI was associated with an increased likelihood of achieving pCR. Initial BMI was also an independent prognostic factor for OS (p = 0.0006) and DFS (p = 0.0005). On the other hand, no significant correlation was seen between pCR rates as well as OFS and DFS (p = 0.0551) among patients whose weight changed during the course of treatment.
CONCLUSIONThese findings suggest that while initial weight may significantly predict pCR rates and affect DFS and OS, weight change during treatment may not be as influential. Further research is needed to validate these findings in more diverse and larger patient populations.
Human ; Breast Neoplasms ; Neoadjuvant Chemotherapy ; Neoadjuvant Therapy ; Pathologic Complete Response ; Prognostic Factors ; Prognosis
7.Breast cancer in the Philippines: A financing cost assessment study.
Madeleine DE ROSAS-VALERA ; Julienne Clarize P. LECHUGA ; Lourdes Risa S. YAPCHIONGCO ; Necy S. JUAT ; Mary Juliet DE ROSAS-LABITIGAN ; Maria Lourdes E. AMARILLO ; Leo M. FLORES ; Maebel Audrey R. JOAQUIN ; Adelberto R. LAMBINICIO
Acta Medica Philippina 2025;59(17):7-15
OBJECTIVES
The aim of the study is to estimate the cost of breast cancer diagnosis, treatment, and management in the Philippines. Specifically, it aims to identify the resource requirements and interventions related to breast cancer diagnosis, treatment, and management, measure resource volumes (number of units), learn to value resource items (unit costs), and determine the total cost of treatment per disease stage.
METHODSThe study covered nine tertiary hospitals, seven of which were government hospitals and two were private hospitals, with all tertiary hospitals providing breast cancer services and accredited by Philippine Health Insurance Corporation (PHIC or PhilHealth) for the Z-Benefit Package. Interventions and services related to breast cancer included radiographic procedures, laboratory and imaging tests, chemotherapy drugs and medications, medical and surgical supplies, surgical rates (for breast surgery), accommodation, staff time and salary/professional fees, and other procedure fees. The study conducted in 2022, examined cost prices of breast cancer interventions and services from stage 1–3B.
Purposive and convenience sampling were used based on PhilHealth accreditation and willingness of hospitals to participate in the study. The study conducted a focus group discussion with oncologists, radiologists, anesthesiologists, and other health care providers to validate the clinical guideline used and to solicit inputs to the costing design, analysis framework, and tools for data collection. Data collection of financial cost information (charge price) was conducted using a set of costing matrices filled out by the various departments of the hospitals. Costs and median rates were calculated across hospitals on diagnostics and imaging tests, surgery costs of both public and private facilities, medical treatment, and radiotherapy.
RESULTSBreast MRI, Breast Panel, and Chest CT Scan are the top 3 most expensive diagnostic procedures ranging from PhP 8,102.00 to PhP 9,800.00 per procedure. Surgical procedures for breast cancer at private hospitals and public hospitals showed huge differences in costs. The cost of a cycle of chemotherapy ranges from PhP 596.70 to PhP 3,700.00 per session, while the cost of targeted therapy can cost up to PhP 46,394.21 per session. A year of hormone therapy ranges from PhP 3,276.00 with the use of Tamoxifen, and up to PhP 68,284.00 with Goserelin. Aromatase inhibitors such as Anastrozole and Letrozole cost from PhP 18,000 to PhP 36,000, respectively. Multiple cycles depending on the diagnosis are prescribed per patient and used in combination with other chemotherapy medications or other therapies such as targeted therapy and hormone therapy are usually taken daily up to 5 to 10 years. Conventional radiotherapy can cost up to PhP 88,150.00 covering 28 sessions, CT simulation, and CT planning.
CONCLUSIONThis cost study provides relevant information and better perspective on benefit development for the PHIC, policy development for Department of Health on where and how to focus their support for the patient’s financial preparedness to address medical and f inancial catastrophes.
PhilHealth needs to guide the health care providers of their costing method and to develop their own integrated, interoperable, and comprehensive cost data library.
It recommends that the government allocate budget and cover for screening and assessment for earlier stage diagnosis of patients and lower health expenditure costs on cancer treatment.
Human ; Breast Neoplasms ; Drug Therapy ; Chemotherapy ; Mastectomy ; Radiotherapy ; Radiation Therapy
8.Rare metastatic primary intra-abdominal follicular dendritic cell sarcoma poorly responsive to chemotherapy: A case report
Leah Anne E. Legaspi ; Mary Ondinee-Igot ; Gracieux Fernando
Philippine Journal of Internal Medicine 2024;62(1):308-313
Background:
Follicular dendritic cell sarcoma (FDCS) accounts for about 0.4% of soft tissue sarcomas. Approximately onethird of cases occur in extranodal sites and about 28% of extranodal FDCS may metastasize. Intra-abdominal occurrence is
rare and there is limited published data to guide oncologists on how to best treat this malignancy.
Case Presentation:
This is a case of a 33-year-old female who came in due to incidental finding of a left supraclavicular
mass with 2-year history of early satiety. Neck node biopsy revealed a poorly differentiated malignant tumor with positive
staining for CD21, CD23, vimentin and S100 consistent with FDCS. PET-CT revealed an intensely FDG-avid large mass in
the left upper abdomen with signs of necrosis and mass effect. The patient was given three different chemotherapy
regimens that included (1) gemcitabine/docetaxel, (2) single agent doxorubicin and (3) ifosfamide/etoposide, but she
progressed on all these. Off-label use of bendamustine was then offered and after just the first cycle, the patient reportedly
regained strength and was able to get up from wheelchair with noted interval decrease in size of the cervical mass.
Unfortunately, the patient deteriorated and succumbed to infection and multiple pulmonary embolisms.
Conclusion
Intra-abdominal FDCS is a rare malignancy with heterogenous outcomes with no uniform treatment strategy
at present. Molecular tumor board discussion and multi-disciplinary approach in extranodal FDCS is important in the
diagnosis and management. Patients with multiple poor prognostic factors are at risk for tumor recurrence, metastasis, and
death.
Dendritic Cell Sarcoma, Follicular
;
Abdominal Neoplasms
;
Drug Therapy
;
Bendamustine Hydrochloride
;
Prognosis
9.Effect of cytoreductive surgery and hyperthermic intraperitoneal chemotherapy on epithelial ovarian, fallopian tube, and peritoneal cancer: An institutional review of outcomes and its clinical implications
Romelyn April P. Imperio‑Onglao ; Jericho Thaddeus P. Luna
Philippine Journal of Obstetrics and Gynecology 2024;48(1):10-21
Background:
Ovarian, fallopian tube, and peritoneal cancer patients with advanced-stage diagnosis or recurrences spread to the peritoneal surface of the abdomen. Hyperthermic intraperitoneal chemotherapy (HIPEC) can penetrate and eradicate tumors that are microscopic up to those with a diameter of 2.5 cm from the peritoneal surface following cytoreductive surgery (CRS).
Objectives:
The study aimed to determine the efficacy and safety of CRS with HIPEC versus CRS alone for patients with epithelial ovarian, fallopian tube, and peritoneal cancer.
Materials and Methods:
This retrospective cohort study included 50 patients (20 patients underwent CRS + HIPEC, while 30 patients underwent CRS alone). Records of these patients from January 2014 to June 2020 were reviewed, tabulated, and analyzed.
Results:
The difference in recurrence rate between CRS with HIPEC and CRS alone was not statistically significant (50% vs. 43%, P = 0.774). The median time to recurrence was 10 and 9 months, respectively (P = 0.636). Five percent in the HIPEC group succumbed to the disease, while 13% died in the CRS alone group (P = 0.636). More post-operative complications were noted in the HIPEC group (45% vs. 10%, P = 0.007), but among these, only 2 cases had grade 3 to 4 complications (10%). The addition of HIPEC in the management of these patients resulted in a longer operative time (360 vs. 240 min, P < 0.001) and postoperative hospital stay (8 vs. 6 days, P = 0.026). There were no intra- or peri-operative mortalities in both groups.
Conclusion
CRS with HIPEC and CRS alone showed similar time to recurrence and recurrence rate. CRS with HIPEC had low risk of grade 3-4 complications and may still be considered as a treatment option for advanced, progressive, and recurrent epithelial ovarian, fallopian tube, and peritoneal cancer.
Cytoreduction Surgical Procedures
;
Hyperthermic Intraperitoneal Chemotherapy
;
Ovarian Neoplasms
10.Effects of VX765 on osteoarthritis and chondrocyte inflammation in rats.
Wanran HUANG ; Junxue TU ; Aiqing QIAO ; Chujun HE
Chinese Journal of Reparative and Reconstructive Surgery 2024;38(1):74-81
OBJECTIVE:
To investigate the effects and underlying mechanisms of VX765 on osteoarthritis (OA) and chondrocytes inflammation in rats.
METHODS:
Chondrocytes were isolated from the knee joints of 4-week-old Sprague Dawley (SD) rats. The third-generation cells were subjected to cell counting kit 8 (CCK-8) analysis to assess the impact of various concentrations (0, 1, 5, 10, 20, 50, 100 μmol/L) of VX765 on rat chondrocyte activity. An in vitro lipopolysaccharide (LPS) induced cell inflammation model was employed, dividing cells into control group, LPS group, VX765 concentration 1 group and VX765 concentration 2 group without obvious cytotoxicity. Western blot, real-time fluorescence quantitative PCR, and ELISA were conducted to measure the expression levels of inflammatory factors-transforming growth factor β 1 (TGF-β 1), interleukin 6 (IL-6), and tumor necrosis factor α (TNF-α). Additionally, Western blot and immunofluorescence staining were employed to assess the expressions of nuclear factor erythroid 2-related factor 2 (Nrf2) and heme oxygenase 1 (HO-1). Thirty-two SD rats were randomly assigned to sham surgery group (group A), OA group (group B), OA+VX765 (50 mg/kg) group (group C), and OA+VX765 (100 mg/kg) group (group D), with 8 rats in each group. Group A underwent a sham operation with a medial incision, while groups B to D underwent additional transverse incisions to the medial collateral ligament and anterior cruciate ligament, with removal of the medial meniscus. One week post-surgery, groups C and D were orally administered 50 mg/kg and 100 mg/kg VX765, respectively, while groups A and B received an equivalent volume of saline. Histopathological examination using HE and safranin-fast green staining was performed, and Mankin scoring was utilized for evaluation. Immunohistochemical staining technique was employed to analyze the expressions of matrix metalloproteinase 13 (MMP-13) and collagen type Ⅱ.
RESULTS:
The CCK-8 assay indicated a significant decrease in cell viability at VX765 concentrations exceeding 10 μmol/L ( P<0.05), so 4 μmol/L and 8 μmol/L VX765 without obvious cytotoxicity were selected for subsequent experiments. Following LPS induction, the expressions of TGF-β 1, IL-6, and TNF-α in cells significantly increased when compared with the control group ( P<0.05). However, intervention with 4 μmol/L and 8 μmol/L VX765 led to a significant decrease in expression compared to the LPS group ( P<0.05). Western blot and immunofluorescence staining demonstrated a significant upregulation of Nrf2 pathway-related molecules Nrf2 and HO-1 protein expressions by VX765 ( P<0.05), indicating Nrf2 pathway activation. Histopathological examination of rat knee joint tissues and immunohistochemical staining revealed that, compared to group B, treatment with VX765 in groups C and D improved joint structural damage in rat OA, alleviated inflammatory reactions, downregulated MMP-13 expression, and increased collagen type Ⅱ expression.
CONCLUSION
VX765 can improve rat OA and reduce chondrocyte inflammation, possibly through the activation of the Nrf2 pathway.
Rats
;
Animals
;
Chondrocytes/metabolism*
;
Matrix Metalloproteinase 13/metabolism*
;
Rats, Sprague-Dawley
;
Tumor Necrosis Factor-alpha/metabolism*
;
Collagen Type II/metabolism*
;
Interleukin-6
;
Lipopolysaccharides/pharmacology*
;
NF-E2-Related Factor 2/pharmacology*
;
Inflammation/drug therapy*
;
Osteoarthritis/metabolism*
;
Transforming Growth Factor beta1/metabolism*
;
Dipeptides
;
para-Aminobenzoates


Result Analysis
Print
Save
E-mail