1.Zuoguiwan Mitigates Oxidative Stress in Rat Model of Hyperthyroidism Due to Kidney-Yin Deficiency via DRD4/NOX4 Pathway
Ling LIN ; Qianming LIANG ; Changsheng DENG ; Li RU ; Zhiyong XU ; Chao LI ; Mingshun SHEN ; Yueming YUAN ; Muzi LI ; Lei YANG
Chinese Journal of Experimental Traditional Medical Formulae 2026;32(2):43-51
ObjectiveTo decipher the mechanism by which Zuoguiwan (ZGW) treat hyperthyroidism in rats with kidney-Yin deficiency based on the dopamine receptor D4 (DRD4)/nicotinamide adenine dinucleotide phosphate (NADPH) oxidase 4 (NOX4) signaling pathway. MethodsThe rat model of kidney-Yin deficiency was induced by unilateral intramuscular injection of dexamethasone (0.35 mg·kg-1). After successful modeling, the rats were randomized into model, methimazole (positive control, 5 mg·kg-1), low-, medium-, and high-dose (1.85, 3.70, 7.40 g·kg-1, respectively) ZGW, and normal control groups. After 21 days of continuous gavage, the behavioral indexes and body weight changes of rats were evaluated. The pathological changes of the renal tissue were observed by hematoxylin-eosin staining. The serum levels of thyroid hormones [triiodothyronine (T3), thyroxine (T4), thyroid-stimulating hormone (TSH)], renal function indexes [serum creatine (Scr) and blood urea nitrogen (BUN)], energy metabolism markers [cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP)], and oxidative stress-related factors [superoxide dismutase (SOD), malondialdehyde (MDA), and NADPH)] were measured by enzyme-linked immunosorbent assay (ELISA). Western blot was employed to analyze the expression of DRD4, NOX4, mitochondrial respiratory chain complex proteins [NADH:ubiquinone oxidoreductase subunit S4 (NDUFS4) and cytochrome C oxidase subunit 4 (COX4)], and inflammation-related protein [tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), p38 mitogen-activated protein kinase (MAPK)] pathway in the renal tissue. ResultsCompared with the normal group, the model group showed mental malaise, body weight decreases (P<0.01), inflammatory cell infiltration in the renal tissue, a few residual parotid glands in the thyroid, elevations in serum levels of T3, T4, Scr, BUN, cAMP, cAMP/cGMP, MDA, and NADPH (P<0.01), down-regulation in protein levels of TSH, SOD, and DRD4 (P<0.05, P<0.01), and up-regulation in expression of NOX4, p-p38 MAPK/p38 MAPK, and inflammatory factors (P<0.01). Compared with the model group, ZGW increased the body weight (P<0.05, P<0.01), reduced the infiltration of renal interstitial inflammatory cells, restored the thyroid structure and follicle size, lowered the serum levels of T3, T4, Scr, BUN, cAMP, cAMP/cGMP, MDA and NADPH (P<0.05, P<0.01), up-regulated the expression of TSH, SOD and DRD4 (P<0.05, P<0.01), and down-regulated the expression of NOX4, p-p38 MAPK/p38 MAPK, and inflammatory factors (P<0.05, P<0.01). Moreover, high-dose ZGW outperformed methimazole (P<0.05). ConclusionBy activating DRD4, ZGW can inhibit the expression of NOX4 mediated by the p38 MAPK pathway, reduce oxidative stress and inflammatory response, thereby ameliorating the pathological state of hyperthyroidism due to kidney-Yin deficiency. This study provides new molecular mechanism support for the clinical application of ZGW.
2.Construction and application of specialized file management and risk warning system for narcotic drugs in medical institutions
Pingxiu TANG ; Qiang YANG ; Xunyan ZHANG ; Lin YUAN
China Pharmacy 2026;37(1):83-87
OBJECTIVE To construct specialized file management and risk warning system for narcotic drugs, and promote the refined management of narcotic drugs in medical institutions. METHODS Through the rational medication management system, patient-indexed narcotic drug medication record information was integrated, pain assessment and rapid dose titration modules were constructed, and a prescription pre-review risk warning model was established. Statistical analysis was conducted on the number of drugs returned by patients, interventions for adverse events related to narcotic drug abuse, patient and physician satisfaction, and patient medication adherence before the system was constructed (January-July 2023) and after its stable operation (January-July 2024). RESULTS After the construction of the system, the number of narcotic drugs returned by patients decreased, except for Morphine tablets. The number of interventions for adverse events related to narcotic drug abuse increased from 0 to 5 cases. The patients’ satisfaction with pain control increased from 46.25% to 67.50%, the proportion of patients with poor adherence decreased from 23.75% to 7.50%, and the overall satisfaction of physicians was 72.41%. CONCLUSIONS The construction of a specialized file management and risk warning system for narcotic drugs enables refined management of narcotic drugs, provides alerts for abnormal prescriptions, reduces patient stockpiling of narcotic drugs, allows timely detection and intervention of adverse events related to narcotic drug abuse, improves physician treatment efficiency and precision, and enhances patient pain control satisfaction and medication adherence.
3.Efficacy and Safety of Qihuang Acupuncture Theory Combined with Opioid Analgesics in the Treatment of Moderate to Severe Cancer Pain in Lung Cancer Patients:a Randomize-Controlled Trial
Yingqi WANG ; Ruifang YU ; Jinpeng HUANG ; Guiya LIAO ; Ziyan GAN ; Zhenhu CHEN ; Xiaobing YANG ; Chunzhi TANG
Journal of Traditional Chinese Medicine 2025;66(4):358-366
ObjectiveTo observe the analgesic efficacy and safety of Qihuang acupuncture theory combined with opioid analgesics in patients with moderate to severe cancer pain due to lung cancer. MethodsPatients with moderate to severe cancer pain from lung cancer were randomly divided into Qihuang acupuncture group and control group, with 33 cases in each group. The control group was treated with long-acting opioid analgesics at maintenance doses and supplementary analgesic medications as needed. In case of breakthrough pain, short-acting opioids were used for rescue. The Qihuang acupuncture group received Qihuang acupuncture treatment in addition to the treatment used in the control group, administered once every other day, with 3 sessions constituting one treatment course. The treatment duration for both groups was 5 days. The primary outcome was the change in pain intensity, measured using the numerical rating scale (NRS) before and after treatment, and the NRS change rate was calculated. Secondary endpoints included the daily NRS change rate, the Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) score, the European Organization for Research and Treatment of Cancer Quality of Life Core Questionnaire (EORTC QLQ-C30) score, and the 24-hour equivalent hydrocodone sustained-release tablet dose. Laboratory tests, including routine blood, urine, stool, liver function, and kidney function, were performed before and after treatment. Adverse events were recorded throughout the trial. ResultsAll patients completed the trial, and both groups showed a decrease in average NRS scores and PS scores after treatment, with the Qihuang acupuncture group showing lower average NRS scores and PS scores than the control group (P<0.05 or P<0.01). After treatment, the NRS change rate in the Qihuang acupuncture group was (0.42±0.17), significantly higher than that in the control group (0.14±0.27, P<0.01). The daily NRS change rate during treatment was also higher in the Qihuang acupuncture group compared to the control group (P<0.01). The Qihuang acupuncture group showed an increase in overall health status and functional scores in the EORTC QLQ-C30, and a decrease in symptom scores for fatigue, nausea and vomiting, pain, dyspnea, insomnia, appetite loss, constipation, and financial difficulties. In contrast, overall health status and constipation scores in the control group increased, while scores of fatigue, nausea and vomiting, pain, and appetite loss decreased (P<0.05 or P<0.01). After treatment, the 24-hour equivalent hydrocodone sustained-release tablet dose did not show significant difference in the Qihuang acupuncture group (P>0.05), while the control group showed a significant increase in the 24-hour dose (P<0.01). No significant abnormalities were observed in laboratory tests before and after treatment in either group. During the study, the incidence of nausea and vomiting as well as constipation in the Qihuang acupuncture group was both 3.03% (1/33), while the incidence in the control group was 27.27% (9/33) and 36.36% (12/33), respectively, with the Qihuang acupuncture group showing significantly lower incidence (P<0.01). No serious adverse reactions were observed in either group. ConclusionQihuang acupuncture therapy combined with opioid analgesics is more effective than using opioids alone in relieving pain in patients with moderate to severe cancer pain due to lung cancer. It can improve the patients' physical condition and quality of life, reduce the dose of opioid analgesics, and has good safety.
4.Textual Research on Key Information of Famous Classical Formula Jiegengtang
Yang LEI ; Yuli LI ; Xiaoming XIE ; Zhen LIU ; Shanghua ZHANG ; Tieru CAI ; Ying TAN ; Weiqiang ZHOU ; Zhaoxu YI ; Yun TANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(7):182-190
Jiegengtang is a basic formula for treating sore throat and cough. By means of bibliometrics, this study conducted a textual research and analysis on the key information such as formula origin, decocting methods, and clinical application of Jiegengtang. After the research, it can be seen that Jiegengtang is firstly contained in Treatise on Febrile and Miscellaneous Disease, which is also known as Ganjietang, and it has been inherited and innovated by medical practitioners of various dynasties in later times. The origins of Chinese medicines in this formula is basically clear, Jiegeng is the dried roots of Platycodon grandiflorum, Gancao is the dried roots and rhizomes of Glycyrrhiza uralensis, the two medicines are selected raw products. The dosage is 27.60 g of Glycyrrhizae Radix et Rhizoma and 13.80 g of Platycodonis Radix, decocted with 600 mL of water to 200 mL, taken warmly after meals, twice a day, 100 mL for each time. In ancient times, Jiegengtang was mainly used for treating Shaoyin-heat invasion syndrome, with cough and sore throat as its core symptoms. In modern clinical practice, Jiegengtang is mainly used for respiratory diseases such as pharyngitis, esophagitis, tonsillitis and lung abscess, especially for pharyngitis and lung abscess with remarkable efficacy. This paper can provide literature reference basis for the modern clinical application and new drug development of Jiegengtang.
5.Textual Research on Key Information of Famous Classical Formula Jiegengtang
Yang LEI ; Yuli LI ; Xiaoming XIE ; Zhen LIU ; Shanghua ZHANG ; Tieru CAI ; Ying TAN ; Weiqiang ZHOU ; Zhaoxu YI ; Yun TANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(7):182-190
Jiegengtang is a basic formula for treating sore throat and cough. By means of bibliometrics, this study conducted a textual research and analysis on the key information such as formula origin, decocting methods, and clinical application of Jiegengtang. After the research, it can be seen that Jiegengtang is firstly contained in Treatise on Febrile and Miscellaneous Disease, which is also known as Ganjietang, and it has been inherited and innovated by medical practitioners of various dynasties in later times. The origins of Chinese medicines in this formula is basically clear, Jiegeng is the dried roots of Platycodon grandiflorum, Gancao is the dried roots and rhizomes of Glycyrrhiza uralensis, the two medicines are selected raw products. The dosage is 27.60 g of Glycyrrhizae Radix et Rhizoma and 13.80 g of Platycodonis Radix, decocted with 600 mL of water to 200 mL, taken warmly after meals, twice a day, 100 mL for each time. In ancient times, Jiegengtang was mainly used for treating Shaoyin-heat invasion syndrome, with cough and sore throat as its core symptoms. In modern clinical practice, Jiegengtang is mainly used for respiratory diseases such as pharyngitis, esophagitis, tonsillitis and lung abscess, especially for pharyngitis and lung abscess with remarkable efficacy. This paper can provide literature reference basis for the modern clinical application and new drug development of Jiegengtang.
6.Influencing factors for delay in healthcare-seeking, definitive diagnosis, identification in patients with pulmonary tuberculosis in Minhang District
MA Qiongjin ; YAN Huiqin ; WU Yunhua ; GUO Xu ; YANG Lijia ; TANG Lihong ; YANG Shengyuan
Journal of Preventive Medicine 2025;37(1):59-64
Objective:
To investigate the influencing factors for delay in healthcare-seeking, definitive diagnosis and identification in patients with pulmonary tuberculosis (PTB) in Minhang District, Shanghai Municipality, so as to provide the basis for effectively reducing delay in PTB patients.
Methods:
Data of PTB patients in Minhang District from 2017 to 2022 were collected from the Infectious Disease Reporting Information System of Chinese Disease Prevention and Control Information System. The prevalence rates of delay in healthcare-seeking, definitive diagnosis and identification were analyzed, and factors affecting delay in healthcare-seeking, definitive diagnosis and identification were identified using multivariable logistic regression models.
Results:
A total of 4 214 PTB patients were reported in Minhang District from 2017 to 2022, including 2 802 males and 1 412 females, with a male-to-female ratio of 1.98∶1. The majority of patients were aged 25 to <45 years (1 664 cases, 39.49%). The prevalence rates of delay in healthcare-seeking, definitive diagnosis and identification were 36.81%, 30.21% and 38.09%, respectively. Delay in healthcare-seeking was associated with the year (2018, OR=0.708; 2019, OR=0.549; 2020, OR=0.670; 2021, OR=0.682), gender (female, OR=1.199), occupation (worker, OR=1.379; housekeeping service/housework/unemployed, OR=1.481), case identification route (symptom-based consultation, OR=11.159), and level of the first-diagnosed hospital (city-level, OR=1.528). Delay in definitive diagnosis was associated with age (45 to <65 years, OR=1.476), occupation (commercial service, OR=0.687; housekeeping service/housework/unemployed, OR=0.672), household registration (non-local, OR=0.820), case identification route (symptom-based consultation, OR=0.616), pathogen test result (negative/not tested, OR=1.903), and the level of the first-diagnosed hospital (city-level, OR=0.311). Delay in identification was associated with the year (2018, OR=0.785; 2019, OR=0.647; 2020, OR=0.790; 2021, OR=0.710), occupation (commercial service, OR=0.687), household registration (non-local, OR=0.848) and level of the first-diagnosed hospital (city-level, OR=0.560)
Conclusions
Year, gender, occupation, case identification route and level of the first-diagnosed hospital are influencing factors for delay in healthcare-seeking in PTB patients. Age, occupation, household registration, case identification route, pathogen test result and level of the first-diagnosed hospital are influencing factors for delay in definitive diagnosis. Year, occupation, household registration and level of the first-diagnosed hospital are influencing factors for delay in identification.
7.Concept, design and clinical application of minimally invasive liver transplantation through laparoscopic combined upper midline incision
Shuhong YI ; Hui TANG ; Kaining ZENG ; Xiao FENG ; Binsheng FU ; Qing YANG ; Jia YAO ; Yang YANG ; Guihua CHEN
Organ Transplantation 2025;16(1):67-73
Objective To explore the technical process and clinical application of laparoscopic combined upper midline incision minimally invasive liver transplantation. Methods A retrospective analysis was conducted on 30 cases of laparoscopic combined upper midline incision minimally invasive liver transplantation. The cases were divided into cirrhosis group (15 cases) and liver failure group (15 cases) based on the primary disease. The surgical and postoperative conditions of the two groups were compared. Results All patients successfully underwent laparoscopic "clockwise" liver resection, with no cases of passive conversion to open surgery or intolerance to pneumoperitoneum. In 6 cases, the right lobe was relatively large, and the right hepatic ligaments could not be completely mobilized. One case required an additional reverse "L" incision during open surgery. All patients successfully completed the liver transplantation, with no major intraoperative bleeding, cardiovascular events, or other occurrences in the 30 patients. The model for end-stage liver disease (MELD) score in the cirrhosis group was lower than that in the liver failure group (P<0.001). There were no statistically significant differences between the two groups in terms of age, surgical time, blood loss, anhepatic phase, or cold ischemia time (all P>0.05). During the perioperative period, there was 1 case of hepatic artery embolism, 1 case of portal vein anastomotic stenosis, no complications of hepatic vein and inferior vena cava, and 3 cases of biliary anastomotic stenosis, all of which occurred in the liver failure group. Conclusions In strictly selected cases, the minimally invasive liver transplantation technique combining laparoscopic hepatectomy with upper midline incision for graft implantation has the advantages of smaller incisions, less bleeding, relatively easier operation, and faster postoperative recovery, which is worthy of clinical promotion and application.
8.Mechanism of Buyang Huanwutang in Inhibiting Ferroptosis and Enhancing Neurological Function Recovery After Spinal Cord Injury via GPX4-ACSL4 Axis
Luchun XU ; Guozheng JIANG ; Yukun MA ; Jiawei SONG ; Yushan GAO ; Guanlong WANG ; Jiaojiao FAN ; Yongdong YANG ; Xing YU ; Xiangsheng TANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):20-30
ObjectiveTo explore the mechanism by which Buyang Huanwutang regulates the glutathione peroxidase 4 (GPX4)-acyl-CoA synthetase long-chain family member 4 (ACSL4) axis to inhibit ferroptosis and promote neurological functional recovery after spinal cord injury (SCI). MethodsNinety rats were randomly divided into five groups: sham operation group, model group, low-dose Buyang Huanwutang group (12.5 g·kg-1), high-dose Buyang Huanwutang group (25 g·kg-1), and Buyang Huanwutang + inhibitor group (25 g·kg-1 + 5 g·kg-1 RSL3). The SCI model was established by using the allen method. Tissue was collected on the 7th and 28th days after operation. Motor function was assessed by using the Basso-Beattie-Bresnahan (BBB) scale. Hematoxylin-eosin (HE), Nissl, and Luxol fast blue (LFB) staining were performed to observe spinal cord histopathology. Transmission electron microscopy was used to examine mitochondrial ultrastructure. Immunofluorescence staining was used to detect the number of NeuN-positive cells and the fluorescence intensity of myelin basic protein (MBP), GPX4, and ACSL4. Real-time fluorescent quantitative polymerase chain reaction (Real-time PCR) was used to analyze the mRNA expression of GPX4 and ACSL4. Enzyme linked immunosorbent assay (ELISA) was performed to measure the levels of reactive oxygen species (ROS), malondialdehyde (MDA), glutathione (GSH), and superoxide dismutase (SOD). Colorimetric assays were used to determine the iron content in spinal cord tissue. ResultsCompared to the sham operation group, the model group exhibited significantly reduced BBB scores (P<0.01), severe pathological damage in spinal cord tissue, and marked mitochondrial ultrastructural disruption. In addition, the model group showed a decrease in the number of NeuN-positive cells (P<0.01), reduced fluorescence intensity of MBP and GPX4 (P<0.01), lower levels of GSH and SOD (P<0.01), and downregulated mRNA expression of GPX4 (P<0.01). Moreover, compared to the sham operation group, the model group had elevated levels of ROS, MDA, and tissue iron content (P<0.01), along with increased fluorescence intensity and mRNA expression of ACSL4 (P<0.01). Compared with the model group and Buyang Huanwutang + inhibitor group, the Buyang Huanwutang group showed significantly improved BBB scores (P<0.05, P<0.01) and exhibited less severe spinal cord tissue damage, reduced edema and inflammatory cell infiltration, increased neuronal survival, and more intact myelin structures. Additionally, mitochondrial ultrastructure was significantly improved in the Buyang Huanwutang group. Compared to the model group and Buyang Huanwutang + inhibitor group, the Buyang Huanwutang group significantly increased the number of NeuN-positive cells and the fluorescence intensity of MBP (P<0.05, P<0.01). Furthermore, Buyang Huanwutang significantly increased the fluorescence intensity and mRNA expression of GPX4 (P<0.01) and decreased the fluorescence intensity and mRNA expression of ACSL4 (P<0.01) compared to the model group and Buyang Huanwutang + inhibitor group. Finally, the Buyang Huanwutang group significantly decreased ROS, MDA, and tissue iron content (P<0.01) and significantly increased GSH and SOD levels (P<0.01) compared to the model group and Buyang Huanwutang + inhibitor group. ConclusionBuyang Huanwutang inhibits ferroptosis through the GPX4/ACSL4 axis, reduces secondary neuronal and myelin injury and oxidative stress, and ultimately promotes the recovery of neurological function.
9.Mechanism of Modified Danggui Shaoyaosan in Improving Inflammation and Apoptosis in Acne via Regulating JNK/p38 MAPK Pathway
Gongzhen CHEN ; Yuqi YANG ; Xin LIU ; Ting TANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(5):31-40
ObjectiveTo explore the therapeutic effects and mechanisms of modified Danggui Shaoyaosan on acne based on the c-Jun N-terminal kinase (JNK)/p38 mitogen-activated protein kinase (p38 MAPK) pathway. MethodsA rat ear acne model was established in SD rats, and the rats were divided into a blank group, a model group, and low-, medium-, and high-dose groups of modified Danggui Shaoyaosan (7.15, 14.30, 28.60 g·kg·d-1), with six rats in each group. After the administration for 14 consecutive days, morphological changes in the rats' auricles were observed, and hematoxylin-eosin (HE) staining was used to examine the pathological changes in the acne-affected ear tissue. Enzyme-linked immunosorbent assay (ELISA) was employed to measure the levels of interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α) in the ear tissue. Quantitative reverse transcription polymerase chain reaction (Real-time PCR) was performed to detect the mRNA expression levels of Caspase-3, B cell lymphoma-2 (Bcl-2), Bcl-2-associated X protein (Bax), JNK, and p38 MAPK in the ear tissue. Additionally, Western blot analysis was conducted to assess the protein levels of Caspase-3, Bcl-2, Bax, JNK, and p38 MAPK in the ear tissue. The active components and key targets of modified Danggui Shaoyaosan in the treatment of acne were identified through network pharmacology analysis. Molecular docking was then employed to evaluate the interactions between the main active components and the key targets. ResultsThe results of the animal experiment demonstrated that compared with those in the blank group, rats in the model group exhibited redness, swelling, thickening, hardening, dryness, and roughness of the auricle. The surface showed sebaceous scales and desquamation, accompanied by acne-like lesions such as papule-like elevations or cysts. Histopathological changes included keratinization, epidermal thickening, dermal collagen fiber degeneration and necrosis, subcutaneous muscle degeneration and necrosis, inflammatory cell infiltration, and fibrous tissue proliferation. The mRNA and protein expression levels of IL-1β, TNF-α, Caspase-3, Bax, JNK, and p38 MAPK were significantly increased (P<0.01), while those of Bcl-2 were significantly decreased (P<0.01). In comparison to the model group, the modified Danggui Shaoyaosan groups showed marked improvement in acne-like lesions of the auricle, with varying degrees of histopathological damage reduction. Additionally, the mRNA and protein expression levels of IL-1β, TNF-α, Caspase-3, Bax, JNK, and p38 MAPK in the tissue were significantly decreased (P<0.05, P<0.01), while those of Bcl-2 were significantly increased (P<0.05, P<0.01). Network pharmacology analysis indicated that the key compounds in modified Danggui Shaoyaosan responsible for its effects in treating acne may include acacetin, kaempferol, luteolin, quercetin, wogonin, and baicalein. These compounds exerted their effects by modulating core targets such as TNF, IL-1β, Caspase-3, and Bcl-2, thereby alleviating inflammation and apoptosis and ultimately improving acne symptoms. ConclusionModified Danggui Shaoyaosan may exert its therapeutic effects on acne by inhibiting the activation of the JNK/p38 MAPK pathway, thereby alleviating inflammation and apoptosis.
10.LI Candong's Experience in Treating Pediatric Diseases with Baxian Formula (八仙方)
Yang WANG ; Wen TANG ; Huijuan GAN ;
Journal of Traditional Chinese Medicine 2025;66(6):556-560
Baxian Formula (八仙方) is a folk pediatric prescription in Quanzhou, Fujian Province. This paper summarized the clinical experience of Professor LI Candong in treating pediatric diseases with Baxian Formula. By analyzing the distinctive composition and theoretical underpinnings of the Baxian Formula for treating pediatric lung, liver and spleen diseases, it is considered that the formula prioritizes wind medicinals, aimed at restoring the dynamics of qi movement within the zang fu (脏腑) organs. It excels in dispelling and dispersing wind, promoting digestion, calming the mind, invigorating the spleen and draining dampness, clearing heat and soothing the liver, extinguishing wind and arresting convulsion. The prescription can treat pediatric disorders caused by pathological factors such as wind, phlegm, dampness, food, heat and constraint. Moreover, this paper summarized the clinical thinking of Baxian Formula in treating pediatric diseases of the lung system (common cold, cough, eczema), spleen system (diarrhea, food retention) and liver system (fright from external stimuli, tic disorder), aiming at providing reference for diagnosing and treating pediatric diseases in clinical practice.


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