Re: The design versus the analysis of observational studies for causal effects: parallels with the design of randomized trials.
作者信息
Shrier Ian
出版信息
Stat Med. 2008 Jun 30;27(14):2740-1; author reply 2741-2. doi: 10.1002/sim.3172.
DOI:10.1002/sim.3172
PMID:18069729
Abstract
摘要