引用本文: | 张科, 魏强, 李虹. 浅谈非随机对照试验的系统评价[J]. 循证医学, 2002, 2(4): 225-226. DOI: 10.3969/j.issn.1671-5144.2002.04.011 |
Citation: | Brief introduction to systematic reviews of non-randomized studies[J]. Journal of Evidence-Based Medicine, 2002, 2(4): 225-226. DOI: 10.3969/j.issn.1671-5144.2002.04.011 |