Validity of a study: Internal and external validity

被引：0
作者：
Serra, Maria Sala [1 ]
Torrell, Laia Domingo [1 ]
机构：
[1] Inst Hosp Mar Invest Med, Serv Epidemiol Evaluacio, Barcelona, Spain
来源：
CIRUGIA ESPANOLA | 2022年 / 100卷 / 10期
关键词：
RANDOMIZED TRIALS; CLINICAL-TRIALS;
D O I：
10.1016/j.ciresp.2021.12.008
中图分类号：
R61 [外科手术学];
学科分类号：
摘要：
[No abstract available]
引用
收藏
页码：649 / 651
页数：3
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