目的 探讨胆道探查术中免置T管的可行性与临床意义，提出免置T管的指征。方法 胆道探查术中常规使用胆道镜，先查肝内胆管，再查肝外胆管......

目的:分析人工流产妇女紧急避孕法的使用状况及未使用原因.方法:采用横断面研究,对上海市三所妇幼保健院的606名人工流产妇女进行......

The benefits of climate adaptation policy are sometimes underestimated because its nonuse values perceived by people ind......

This study aims to identify if participants experience attrition in writing skills after two years’ nonuse of English.7......