原文出处SCHÜNEMANN H J,MUSTAFA R A,BROZEK J,et al.GRADE guidelines:21 part 1.Study design,risk of bias,and indirectness in rating the certainty across a body of evidence for test accuracy.J Clin Epidemiol,2020,122:129-141.原文通讯作者SCHÜNEMANN H J,email:schuneh@mcmaster.ca说明本文解读者根据对原文理解做解读,可能不完全反映原文的思想。
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