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. 1997 Aug 2;315(7103):305–308. doi: 10.1136/bmj.315.7103.305
Assessing the methodological quality of published papers.
T Greenhalgh
1
T Greenhalgh
1Department of Primary Care and Population Sciences, University College London Medical School/Royal Free Hospital School of Medicine, Whittington Hospital.
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1Department of Primary Care and Population Sciences, University College London Medical School/Royal Free Hospital School of Medicine, Whittington Hospital.
PMCID: PMC2127212 PMID: 9274555
See letter "Assessing methodological quality of published papers. Pre-allocation bias in randomised controlled trials must be taken into account." in volume 316 on page 151a.