مواد مشابهة
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Randomised controlled trials and retrospective controls.
حسب: Doll, R, وآخرون
منشور في: (1980) -
A randomized trial of blended first aid education for the public
منشور في: (2020-06-01) -
A randomized trial of blended first aid education for the public
منشور في: (2020-06-01) -
Large-scale randomized evidence: large, simple trials and overviews of trials.
حسب: Peto, R, وآخرون
منشور في: (1995) -
Large-scale randomized evidence: large, simple trials and overviews of trials.
حسب: Peto, R, وآخرون
منشور في: (1993)