How do observational studies expand the evidence base for therapy?

被引:62
作者
Radford, MJ
Foody, JM
机构
[1] Yale New Hlth Syst, Ctr Outcomes Res & Evaluat, New Haven, CT 06504 USA
[2] Yale Univ, Sch Med, Dept Med, Sect Cardiovasc Med, New Haven, CT 06510 USA
[3] Qualidigm, Middletown, CT USA
来源
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION | 2001年 / 286卷 / 10期
关键词
D O I
10.1001/jama.286.10.1228
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
引用
收藏
页码:1228 / 1230
页数:3
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