Directory of registries of clinical trials.
作者信息
Easterbrook P J
机构信息
Department of Medince, John Hopkins University School of Medicine, Baltimore, Maryland 21205.
出版信息
Stat Med. 1992 Feb 15;11(3):363-423.
PMID:1609176
Abstract
摘要
Easterbrook P J
Department of Medince, John Hopkins University School of Medicine, Baltimore, Maryland 21205.
Stat Med. 1992 Feb 15;11(3):363-423.
Zotero 插件