引用本文: | 李强. 临床疗效研究(续前)[J]. 循证医学, 2002, 2(2): 120-125. DOI: 10.3969/j.issn.1671-5144.2002.02.023 |
Citation: | Research on clinical effectiveness (sequel)[J]. Journal of Evidence-Based Medicine, 2002, 2(2): 120-125. DOI: 10.3969/j.issn.1671-5144.2002.02.023 |