Clinician-trialist rounds: 5. Cointervention bias--how to diagnose it in their trial and prevent it in yours.
作者信息
Sackett David L
机构信息
Trout Research & Education Centre at Irish Lake, RR 1, Markdale, Ontario, Canada N0C 1H0.
出版信息
Clin Trials. 2011 Aug;8(4):440-2. doi: 10.1177/1740774511410995.
PMID:21835863
Abstract
摘要
Zotero 插件