1.A Case of Acute Lung Injury Complicated by Transcatheter Arterial Chemoembolization for Hepatocellular Carcinoma.
Se Haeng CHO ; Joo Hang KIM ; Byung Soo KIM ; Joon JANG
Tuberculosis and Respiratory Diseases 1995;42(5):781-786
Transcatheter arterial chemoembolization(TACE) was performed in a 61 year old male patient with hepatocellular carcinoma with 10 cc of Lipiodol and 50 mg of doxorubicin. Three days later, he complained of dyspnea and dry cough. The arterial blood gas study revealed moderate hypoxemia and hypocarbia. The chest PA showed acute pulmonary edema with bilateral pleural effusion. To rule out the possibilities of acute respiratory failure caused by infection, pulmonary embolism or congestive heart failure, we performed several laboratory studies. The blood and sputum culture studies revealed negative results for bacterial growth. The echocardiogram was normal. The abdominal CT scan and MR imaging revealed no thrombus or mass lesion in the inferior vena cava. So we concluded pulmonary oil embolism induced by lipiodol as the cause of acute lung injury. Four weeks later, clinical symptoms and chest x-ray were markedly improved with conservative care. We report a case of acute lung injury after TACE with lipiodol and doxorubicin, with review of literatures.
Acute Lung Injury*
;
Anoxia
;
Carcinoma, Hepatocellular*
;
Cough
;
Doxorubicin
;
Dyspnea
;
Embolism
;
Ethiodized Oil
;
Heart Failure
;
Humans
;
Magnetic Resonance Imaging
;
Male
;
Pleural Effusion
;
Pulmonary Edema
;
Pulmonary Embolism
;
Respiratory Insufficiency
;
Sputum
;
Thorax
;
Thrombosis
;
Tomography, X-Ray Computed
;
Vena Cava, Inferior
2.Evaluation of radiopacity and discriminability of various fiber reinforced composite posts.
Eun Hye LEE ; Hang Moon CHOI ; Se Hee PARK ; Jin Woo KIM ; Kyung Mo CHO
Journal of Korean Academy of Conservative Dentistry 2010;35(3):188-197
The purpose of this study was to compare radiopacity and radiographic discriminability of various FRC-Posts. Six FRC-Posts were investigated ; 1) FRC Postec Plus (Ivoclar Vivadent AG, Schaan, Liechtenstein), 2) Snowlight (Carbotech, Lewis center, OH, USA), 3) Dentin Post (Komet Brasseler, Lamgo, Germany), 4) Rely-X Fiber Post (3M ESPE, St.paul, MN, USA), 5) D.T.-Light Post (BISCO, Schaumburg, IL,USA), 6) Luxapost (DMG, Hamburg, Germany) The radiographs of each post with a reference 1 mm / 2 mm aluminum step-wedge was taken using digital sensor. The optical density were calculated by gray value of 10 x 10 pixel and compared in mm Al equivalent at five points. Six maxillary incisors of similar radiopacity were used. Radiographs of posts in Mx. incisors of lingual side of dry mandible were taken. We showed radiographs and asked the questionnaire to 3 radiologists, 3 endodontists, 3 general practitioners. The questionnaire was comprised of choices of the highest, lowest radiopaque individual post and the choices of best discriminable post at apical, coronal area. The following results were obtained. 1. Each post system showed various radiopacity. 2. There was change of discriminability between each post and simulated specimens regardless of examiner. Although each post showed various radiopacity, the difference of radiopacity did not affect on discriminability.
Acrylic Resins
;
Aluminum
;
Composite Resins
;
Dentin
;
General Practitioners
;
Humans
;
Incisor
;
Mandible
;
Polyurethanes
;
Resin Cements
;
Surveys and Questionnaires
3.Phase II Study of Topotecan and Etoposide as Second-line Treatment in Chemotherapy-refractory Small-cell Lung Cancer.
Chul KIM ; Joo Hyuk SOHN ; Joo Hang KIM ; Se Kyu KIM ; Young Sam KIM ; Joon CHANG ; Jae Yong CHO
Cancer Research and Treatment 2002;34(5):334-338
PURPOSE: Refractory small-cell lung cancer (SCLC) has a poor prognosis, and current salvage chemotherapy for refractory SCLC, such as CAV (cyclophosphamide, adriamycin, vincristine) or topotecan, has an unsatisfactory outcome, with a response rate and overall survival of less than 10% and 6 months, respectively. This phase II study evaluated the role of topotecan combined with etoposide in SCLC patients that have progressed, or relapsed, within 3 months following completion of the initial chemotherapy. MATERIALS AND METHODS: Twenty-seven patients were entered into this study. Eligible patients had an ECOG performance status of less than, or equal to, 2, at least one bidimensionally measurable lesion and adequate end organ function. IV topotecan, 1.0 mg/m2/d for 5 consecutive days, and etoposide, 100 mg/m2/d through days 1 to 3, were administered every 3 weeks until disease progression or undue toxicity. RESULTS: The major toxicity was myelosuppression. Grade 3/4 anemia, granulocytopenia, and thrombocy-topenia occurred in 14.2, 34.8, and 27.3% of cycles, respectively. There was no treatment-related death, and other non-hematologic toxicities were generally mild. Four patients achieved partial responses, with a response rate RR of 14.8%. The progression-free survival PFS ranged from 1 to 7 months, with a median of 2.0 months (95% confidence interval 1.22~2.78 months). Twenty-five patients died, with a median overall survival of 5.5 months (ranging from 1 to 21 months, 95% CI 4.32~6.68 months), and the 6-month survival rate was 32.1% (95% confidence interval 14.4~49.8%). CONCLUSION: The combination of topotecan and etoposide chemotherapy showed a modest response rate, but failed to prolong survival of refractory SCLC patients compared to topotecan monotherapy.
Agranulocytosis
;
Anemia
;
Carcinoma, Small Cell
;
Disease Progression
;
Disease-Free Survival
;
Doxorubicin
;
Drug Therapy
;
Drug Therapy, Combination
;
Etoposide*
;
Humans
;
Lung Neoplasms*
;
Lung*
;
Prognosis
;
Survival Rate
;
Topotecan*
4.Some Factors Affecting Bone Mineral Status of Postmenopausal Women.
Se In OH ; Hang Shin LEE ; Mee Sook LEE ; Cho Il KIM ; In Soon KWON ; Sang Chul PARK
Korean Journal of Community Nutrition 2002;7(1):121-129
Osteoporosis, the typical metabolic bone disease of the elderly, is characterized by a reduction in bone mineral density (BMD) and increased fracture risk. Genetic and environmental factors are known to play a key role in bone metabolism, and diet is also considered to be one of the important factors. The purpose of the present study was to investigate the relationship among the factors affecting BMD, including stature, body weight, age, time period since onset of menopause, and biochemical markers of bone turnover in postmenopausal women. Seventy-eight postmenopausal women who visited health promotion center for health examinations volunteered to participate in this study and they were divided into two groups according to the time period since onset of menopause : women with a time period since onset of menopause of less than 5 years (Group 1) and women with a time period since onset of menopause of 5 years or more (Group 2). The demographic characteristics and dietary intake were surveyed using a questionnaire. BMDs of the lumbar spine and femoral neck of subjects were measured by dual energy X-ray absorptiometry. Serum levels of 25-hydroxy-vitamin D and parathyroid hormone (PTH), known to be indicators of bone related hormone status, were anlyzed. Serum samples were measured for calcium, phosphorus, alkaline phosphatase, and osteocalcin as bone formation indicators, and urine was analysed for deoxypyridinoline, creatinine, calcium, and sodium as bone resorption indicators. The results are as follow : The mean BMDs of the lumbar spin and femoral neck were 1.02+/-0.02 g/cm2 and 0.81 +/-0.02 g/cm2, respectively, and the BMD level of Group 2 was significantly lower than tat of Group 1 (p<0.01, p<0.05, respectively). The mean daily intake of energy was 1838 +/- 55 kcal. When nutrient intake was compared with the recommended dietary allowances (RDA) of the subjects, only calcium, vitamin A and riboflavin intake showed means lower than the RDA. The nutrient intake did not show any significant differences between Group 1 and 2 Serum and urine levels of biochemical markers of bone turnover did not show any significant differences between Group 1 and 2, and all were within the normal range. However, the PTH and deoxypyridinoline levels showed a tendency to be higher, and the osteocalcin level to be lower in Group 2 than in Group 1. Although age and years after menopause (YAM) showed negative correlations with lumbar spine bone mineral density (LBMD) (r= -0.38, p<0.001, and r= -0.26, p<0.05, respectively), no correlation was found with femoral neck bone mineral density (NBMD). While height, body weight and body mass index (BMI) showed a positive correlation with LBMD (r= 0.32, p<0.001, r= 0.38, p<0.001, r= 0.22, p= 0.05, respectively), only body weight and BMI showed a positive correlation with NBMD (r= 0.30, p<0.01, and r= 0.27, p<0.05, respectivley). There was no significant corealtion between BMDs and the nutrient intake of subjects, except in the case of carbohydrates (r= 0.22, p<0.05). Also, serum and urine levels of bone turnover markers showed no significant correlation with nutrient intake. On the other hand, serum osteocalcin had a positive correlation with vitamin C intake (r= 0.22, p= 0.05), and urine deoxypyridinolin showed a negative correlation with niacin intake (r= -0.22, p= 0.05). Urinary na was negatively correlated with protein intake(r= -0.23, p= 0.05). The results suggested that it is difficult to prevent the decrease in bone mass among postmenopausal women eating the usual Korean diet. However, the BMDs of the lumbar spine and femoral neck were positively related to body weight ad BMI in postmenopausal women. Therefore, this study confirmed that one of the most effective ways to minimize bone loss in postmenopausal women would be to maintain an adequate body weight with balanced nutrient intake and activity in the pre-and postmenopausal periods.
Absorptiometry, Photon
;
Aged
;
Alkaline Phosphatase
;
Ascorbic Acid
;
Biomarkers
;
Body Height
;
Body Mass Index
;
Body Weight
;
Bone Density
;
Bone Diseases, Metabolic
;
Bone Resorption
;
Calcium
;
Carbohydrates
;
Creatinine
;
Diet
;
Female
;
Femur Neck
;
Hand
;
Health Promotion
;
Humans
;
Menopause
;
Metabolism
;
Niacin
;
Osteocalcin
;
Osteogenesis
;
Osteoporosis
;
Parathyroid Hormone
;
Phosphorus
;
Postmenopause
;
Recommended Dietary Allowances
;
Reference Values
;
Riboflavin
;
Sodium
;
Spine
;
Vitamin A
;
Surveys and Questionnaires
5.Factors Affecting Bone Mineral Status of Premenopausal Women.
Se In OH ; Hang Shin LEE ; Mee Sook LEE ; Cho Il KIM ; In Soon KWON ; Sang Chul PARK
Korean Journal of Community Nutrition 2003;8(6):927-937
This study was conducted to investigate dietary and other factors affecting bone mineral density (BMD) in Korean premenopausal women. Seventy-eight premenopausal women who visited the Health Promotion Center for health examinations volunteered to participate in this study. They were divided into two groups according to their bone status as shown by their T-scores: a non-osteoporotic group and a osteoporotic group. The results are as follows: The mean BMDs of the lumbar spine and femoral neck were 1.21 +/- 0.02 g/cm2 and 0.97 +/- 0.04 g/cm2, respectively. The BMD levels of the osteoporotic group were significantly lower than those of the non-osteoporotic group (p < 0.001, respectively). The heights of the women in the osteoporotic group were significantly lower than those of the non-osteoporotic group (p < 0.01) however, their body weights did not show any significant differences although they tended to be lower. The mean daily intake of energy was 1720 +/- 52 kcal. When the nutrient intake was compared with the Korean recommended dietary allowances (RDA), calcium, Fe, vitamin A and riboflavin intakes were lower than the RDA. Their was no significant difference in the nutrient intake of the non-osteoporotic group and osteoporotic group except for the intakes of protein, fat and niacin. Their was no significant difference between the non-osteoporotic group and the osteoporotic group and all were within the normal range. However, the serum alkaline phosphatase level of the osteoporotic group was significantly higher than that of the non-osteoporotic group (p < 0.001). Height measurements showed positive correlations with lumbar spine bone mineral density (LBMD, r = 0.332, p < 0.01) however there was no correlation with femoral neck bone mineral density (NBMD). Age, age at menarche, body weight, body mass index (BMI) and obesity showed no correlation with BMD. The BMD of the lumbar spine was significantly and positively related to the intake of niacin and vitamin C (r = 0.236, p < 0.05; r = 0.274, p < 0.05). Serum levels of calcium and phosphorus showed negative correlations with LBMD (r = -0.698, p = 0.0001; r = -0.503, p = 0.0001, respectively). The results suggested that the BMD of the lumbar spine was positively related to the intake of niacin and vitamin C in premenopausal women. Therefore, this study confirmed that one of the most effective ways to minimize bone loss would be have a higher intake of niacin and vitamin C rich foods and engaging habitually in physical activity may have a beneficial effect on BMD in the premenopausal period.
Alkaline Phosphatase
;
Ascorbic Acid
;
Body Mass Index
;
Body Weight
;
Bone Density
;
Calcium
;
Female
;
Femur Neck
;
Health Promotion
;
Humans
;
Menarche
;
Motor Activity
;
Niacin
;
Obesity
;
Phosphorus
;
Premenopause
;
Recommended Dietary Allowances
;
Reference Values
;
Riboflavin
;
Spine
;
Vitamin A
6.Retraction: Prognostic and Predictive Value of Carcinoembryonic Antigen and Cytokeratin-19 Fragments Levels in Advanced Non-Small Cell Lung Cancer Patients Treated with Gefitinib or Erlotinib. Yonsei Med J 2012;53:931-9..
Minkyu JUNG ; Se Hyun KIM ; Soojung HONG ; Young Ae KANG ; Se Kyu KIM ; Joon CHANG ; Sun Young RHA ; Joo Hang KIM ; Dae Joon KIM ; Byoung Chul CHO
Yonsei Medical Journal 2013;54(1):269-269
No abstract available.
7.Prognostic and Predictive Value of Carcinoembryonic Antigen and Cytokeratin-19 Fragments Levels in Advanced Non-Small Cell Lung Cancer Patients Treated with Gefitinib or Erlotinib.
Minkyu JUNG ; Se Hyun KIM ; Soojung HONG ; Young Ae KANG ; Se Kyu KIM ; Joon CHANG ; Sun Young RHA ; Joo Hang KIM ; Dae Joon KIM ; Byoung Chul CHO
Yonsei Medical Journal 2012;53(5):931-939
PURPOSE: The prognostic and predictive value of pretreatment serum levels of carcinoembryonic antigen (CEA) and cytokeratin-19 fragments (CYFRA 21-1) were assessed in advanced non-small cell lung cancer (NSCLC) patients treated with gefitinib or erlotinib. MATERIALS AND METHODS: Pretreatment CEA and CYFRA 21-1 were measured in 123 advanced NSCLC patients receiving gefitinib or erlotinib. High CEA levels (h-CEA) were significantly associated with females, patients with adenocarcinoma, and non-smokers. RESULTS: Low CYFRA 21-1 levels (l-CYFRA) were significantly associated with a good performance status (ECOG PS 0-1). The overall response rate (RR) was 27.6%, and higher RR was associated with adenocarcinoma, h-CEA, and epidermal growth factor receptor (EGFR) mutation. Patients with h-CEA had significantly longer progression-free survival (PFS) (p=0.021). Patients with l-CYFRA had significantly longer PFS and overall survival (p=0.006 and p<0.001, respectively). Of note, h-CEA and l-CYFRA had good prognosis in patients with unknown EGFR mutation status or patients with squamous cell carcinoma (p=0.021 and p=0.015, respectively). A good ECOG PS (HR=0.45, p=0.017), h-CEA (HR=0.41, p=0.007), l-CYFRA 21-1 (HR=0.52, p=0.025), and an EGFR mutation (HR=0.22, p<0.001) were independently predictive of a longer PFS. CONCLUSION: h-CEA and l-CYFRA 21-1 may be prognostic and predictive serum markers for higher response and longer survival in patients with advanced NSCLC receiving gefitinib or erlotinib, especially in patients with unknown EGFR mutation status or patients with squamous cell carcinoma.
Adenocarcinoma
;
Biomarkers
;
Carcinoembryonic Antigen*
;
Carcinoma, Non-Small-Cell Lung*
;
Carcinoma, Squamous Cell
;
Disease-Free Survival
;
Erlotinib Hydrochloride*
;
Female
;
Humans
;
Keratin-19*
;
Prognosis
;
Receptor, Epidermal Growth Factor
8.Laparoscopic Splenectomy in a Case of Stable Blunt Abdominal Trauma.
Hang Joo CHO ; Yeon Young KYOUNG ; Ju Suk OH ; Young Min OH ; Se Min CHOE ; Kyoung Ho CHOI
Journal of the Korean Society of Traumatology 2010;23(2):192-195
Splenic rupture is a frequent surgical emergency in blunt abdominal trauma patients. There are several treatment options, including conservative treatment, a partial splenectomy, splenorrhaphy, and a splenectomy for splenic injury. Although reports on the safety and the efficacy of an elective laparoscopic splenectomy are abundant in the literature, a laparoscopic splenectomy for a ruptured spleen has only been reported in a few cases. We report a case of a laparoscopic splenectomy in the patient with Grade III traumatic splenic injury. To our knowledge, this is the first report in which a laparoscopic splenectomy was performed in Korea for the treatment of a traumatic splenic injury.
Emergencies
;
Humans
;
Korea
;
Spleen
;
Splenectomy
;
Splenic Rupture
9.The effects of adjuvant therapy and prognostic factors in completely resected stage IIIa non-small cell lung cancer.
Se Haeng CHO ; Kyung Young CHUNG ; Joo Hang KIM ; Byung Soo KIM ; Joon CHANG ; Sung Kyu KIM ; Won Young LEE
Tuberculosis and Respiratory Diseases 1996;43(5):709-719
BACKGROUND: Surgical resection is the only way to cure non-small cell lung cancer(NSCLC) and the prognosis of NSCLC in patients who undergo a complete resection is largely influenced by the pathologic stage. After surgical resection, recurrences in distant sites is more common than local recurrences. An effective postoperative adjuvant therapy which can prevent recurrences is necessary to improve long term survival. Although chemotherapy and radiotherapy are still the mainstay in adjuvant therapy, the benefits of such therapies are still controversial. We initiated this retrospective study to evaluate the effects of adjuvant therapies and analyze the prognostic factors for survival after curative resection. METHODS: From 1990 to 1995, curative resection was performed in 282 NSCLC patients with stage I, II, IIIa, Survival analysis of 282 patients was performed by Kaplan-Meier method. The prognostic factors, affecting survival of patients were analyzed by Cox regression model. RESULTS: Squamous cell carcinoma was present in 166 patients (59%) ; adenocarcinoma in 86 patients(30%) ; adenosquamous carcinoma in 11 patients (3.9%) ; and large cell undifferentiated carcinoma in 19 patients(7.1%). By TNM staging system, 93 patients were in stage I ; 58 patients in stage II ; and 131 patients in stage IIIa. There were 139 postoperative recurrences which include 28 local and 111 distant failures (20.1% vs 79.9%). The five year survival rate was 50.1% in stage I ; 31.3% in stage II ; and 24.1% in stage IIIa(p<0.0001). The median survival duration was 55 months in stage I ; 27 months in stage II ; and 16 months in stage IIIa. Among 131 patients with stage IIIa, the median survival duration was 19 months for 81 patients who received postoperative adjuvant chemotherapy only or chemo-radiotherapy and 14 months for the other 50 patients who received surgery only or surgery with adjuvant radiotherapy (p=0.2982). Among 131 patients with stage IIIa, the median disease free survival duration was 16 months for 21 patients who received postop. adjuvant chemotherapy only and 4 months for 11 patients who received surgery only(p=0.0494). In 131 patients with stage IIIa, 92 cases were in N2 stage. The five year survival rate of the 92 patients with N2 was 25% and their median survival duration was 15 months. The median survival duration in patients with N2 stage was 18 months for those 62 patients who received adjuvant chemotherapy and 14 months for the other 30 patients who did not(p=0.3988). The median survival duration was 16 months for those 66 patients who received irradiation and 14 months for the other 26 patients who did not(p=0.6588). We performed multivariate analysis to identify the factors affecting prognosis after complete surgical resection, using the Cox multiple regression model. Only age(p=0.0093) and the pathologic stage(p <0.0001) were significant prognostic indicators. CONCLUSION: The age and pathologic stage of the NSCLC patients are the significant prognostic factors in our study. Disease free survival duration was prolonged with statistical significance in patients who received postoperative adjuvant chemotherapy but overall survival duration was not affected according to adjuvant therapy after surgical resection.
Adenocarcinoma
;
Carcinoma
;
Carcinoma, Adenosquamous
;
Carcinoma, Non-Small-Cell Lung*
;
Carcinoma, Squamous Cell
;
Chemotherapy, Adjuvant
;
Disease-Free Survival
;
Drug Therapy
;
Humans
;
Lung
;
Multivariate Analysis
;
Neoplasm Staging
;
Prognosis
;
Radiotherapy
;
Radiotherapy, Adjuvant
;
Recurrence
;
Retrospective Studies
;
Survival Rate
10.The effects of adjuvant therapy and prognostic factors in completely resected stage IIIa non-small cell lung cancer.
Se Haeng CHO ; Kyung Young CHUNG ; Joo Hang KIM ; Byung Soo KIM ; Joon CHANG ; Sung Kyu KIM ; Won Young LEE
Tuberculosis and Respiratory Diseases 1996;43(5):709-719
BACKGROUND: Surgical resection is the only way to cure non-small cell lung cancer(NSCLC) and the prognosis of NSCLC in patients who undergo a complete resection is largely influenced by the pathologic stage. After surgical resection, recurrences in distant sites is more common than local recurrences. An effective postoperative adjuvant therapy which can prevent recurrences is necessary to improve long term survival. Although chemotherapy and radiotherapy are still the mainstay in adjuvant therapy, the benefits of such therapies are still controversial. We initiated this retrospective study to evaluate the effects of adjuvant therapies and analyze the prognostic factors for survival after curative resection. METHODS: From 1990 to 1995, curative resection was performed in 282 NSCLC patients with stage I, II, IIIa, Survival analysis of 282 patients was performed by Kaplan-Meier method. The prognostic factors, affecting survival of patients were analyzed by Cox regression model. RESULTS: Squamous cell carcinoma was present in 166 patients (59%) ; adenocarcinoma in 86 patients(30%) ; adenosquamous carcinoma in 11 patients (3.9%) ; and large cell undifferentiated carcinoma in 19 patients(7.1%). By TNM staging system, 93 patients were in stage I ; 58 patients in stage II ; and 131 patients in stage IIIa. There were 139 postoperative recurrences which include 28 local and 111 distant failures (20.1% vs 79.9%). The five year survival rate was 50.1% in stage I ; 31.3% in stage II ; and 24.1% in stage IIIa(p<0.0001). The median survival duration was 55 months in stage I ; 27 months in stage II ; and 16 months in stage IIIa. Among 131 patients with stage IIIa, the median survival duration was 19 months for 81 patients who received postoperative adjuvant chemotherapy only or chemo-radiotherapy and 14 months for the other 50 patients who received surgery only or surgery with adjuvant radiotherapy (p=0.2982). Among 131 patients with stage IIIa, the median disease free survival duration was 16 months for 21 patients who received postop. adjuvant chemotherapy only and 4 months for 11 patients who received surgery only(p=0.0494). In 131 patients with stage IIIa, 92 cases were in N2 stage. The five year survival rate of the 92 patients with N2 was 25% and their median survival duration was 15 months. The median survival duration in patients with N2 stage was 18 months for those 62 patients who received adjuvant chemotherapy and 14 months for the other 30 patients who did not(p=0.3988). The median survival duration was 16 months for those 66 patients who received irradiation and 14 months for the other 26 patients who did not(p=0.6588). We performed multivariate analysis to identify the factors affecting prognosis after complete surgical resection, using the Cox multiple regression model. Only age(p=0.0093) and the pathologic stage(p <0.0001) were significant prognostic indicators. CONCLUSION: The age and pathologic stage of the NSCLC patients are the significant prognostic factors in our study. Disease free survival duration was prolonged with statistical significance in patients who received postoperative adjuvant chemotherapy but overall survival duration was not affected according to adjuvant therapy after surgical resection.
Adenocarcinoma
;
Carcinoma
;
Carcinoma, Adenosquamous
;
Carcinoma, Non-Small-Cell Lung*
;
Carcinoma, Squamous Cell
;
Chemotherapy, Adjuvant
;
Disease-Free Survival
;
Drug Therapy
;
Humans
;
Lung
;
Multivariate Analysis
;
Neoplasm Staging
;
Prognosis
;
Radiotherapy
;
Radiotherapy, Adjuvant
;
Recurrence
;
Retrospective Studies
;
Survival Rate