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[External validity and its evaluation used in clinical trials].

作者信息

Wu Yu-Xia, Kang De-Ying, Hong Qi, Wang Jia-Liang

机构信息

Department of Evidence-Based Medicine and Clinical Epidemiology, West China Hospital, Sichuan University, Chengdu 610041, China.

出版信息

Zhonghua Liu Xing Bing Xue Za Zhi. 2011 May;32(5):514-8.

PMID:21569739
Abstract
摘要

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