Bias in observational study designs: cross sectional studies

标题
Bias in observational study designs: cross sectional studies
作者
关键词
-
出版物
BMJ-British Medical Journal
Volume 350, Issue mar06 3, Pages h1286-h1286
出版商
BMJ
发表日期
2015-03-06
DOI
10.1136/bmj.h1286

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