Objective:To study the short-term clinical outcomes of different courses of antenatal corticosteroids (ACS) for preterm twins.Methods:From January 2017 to December 2021, preterm twins with gestational age (GA) 24-34 weeks admitted to the neonatal ward of our hospital and received ACS were retrospectively studied. The infants were assigned into single-course group, partial-course group and multiple-course group according to ACS courses. The short-term clinical outcomes were compared among the groups. SPSS software version 25.0 was used for statistical analysis.Results:A total of 286 infants were enrolled in this study, including 128 in single-course group, 89 in partial-course group and 69 in multiple-course group. Compared with single-course group, the risks of neonatal respiratory distress syndrome (RDS) in both partial-course group ( OR=2.332, 95% CI 1.028-5.293, P=0.043) and multiple-course group ( OR=3.872, 95% CI 1.104-13.584, P=0.034) were higher. The birth length in multiple-course group ( β=-0.016, 95% CI -0.029 - -0.002, P=0.024) was lower than single-course group. Conclusions:The risks of neonatal RDS in preterm twins are higher in partial-course and multiple-course of ACS. A full course of ACS should be used to prevent neonatal RDS until further evidence of effectiveness is available.

Traditional Chinese medicine （TCM） has special advantages and independent value in fighting major epidemics such as emerging infectious diseases. To exert the efficacy of TCM in the field of public health emergency management， it is necessary to clarify the necessity and analyze the obstacles， hidden dangers， and ethical risks of integrating TCM into the public health emergency management system. By optimizing the legal system of integrating TCM into the public health emergency management system， improving the construction of system and mechanism of health emergency management for preventing and controlling major epidemics with TCM， enhancing the strength of clinical scientific research technology of TCM in preventing and controlling epidemics， strengthening the discipline education of TCM and the construction of the talent team， based on the background of combining Chinese and Western medicine， the integration of TCM into the national public health emergency management system can be promoted.

Objective: To evaluate the clinical characteristics of T-cell acute leukemia/lymphoma (T-ALL) and explore the prognosis significance of early T-cell precursor leukemia/lymphoma. Methods: A cohort of 126 patients diagnosed with T-ALL from 2008 to 2014 in West China Hospital, Sichuan University were enrolled in this study. They were further categorized by immunophenotype according to the expression of T-cell lineage markers CD1a, CD8, CD5 and one or more stem cell or myeloid markers. The laboratory indicators and prognosis factors were also statistically analyzed. Results: Of all patients, the ratio of male to female was 2.5∶1, with the median age of 25 years old (range 14 to 77) . The percentage of ETP-ALL was up to 47.6%. T-ALL patients showed higher ratio in first clinical remission rate (CR₁) than T-LBL ones (64.4% vs 30.8%, P=0.032) . Group with WBC count higher than 50×10⁹/L at presentation showed higher ration of achieving CR₁ than those lower than 50×10⁹/L (78.4% vs 50.9%, P=0.010) . In comparison with the non-ETP-ALL, ETP-ALL patients had older age of onset (P<0.001) , lower WBC count (P<0.001) , lower risk of CNS involvement (10.0% vs 30.2%, P=0.009) and slightly inferior overall survival (P=0.073) . T-cell lineage markers CD1a^-, CD8^- and CD4^- positive patients had higher CR₁ than their corresponding negative ones (P=0.002, P=0.000, P=0.001) , while CD33^- and CD56^- positive patients had lower ratio of achieving CR₁ than their negative ones, respectively (P=0.035, P=0.035) . Conclusion Flow cytometry and associated markers for immunophenotyping was of significance in the diagnosis and prognosis monitoring of T-ALL/LBL. The percentage of ETP-ALL/LBL subtype was high in Chinese adolescent and adult T-ALL patients. ETP-ALL/LBL was a high risk subtype, which needs more precise standard for diagnosis and advanced therapies for better outcome.