Single-center trials tend to provide larger treatment effects than multicenter trials: a systematic review

Author:

Unverzagt Susanne,Prondzinsky Roland,Peinemann Frank

Publisher

Elsevier BV

Subject

Epidemiology

Reference51 articles.

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2. CONSORT 2010 statement: updated guidelines for reporting parallel group randomised trials;Schulz;BMJ,2010

3. Systems to rate the strength of scientific evidence. Evidence reports/technology assessments, no. 47. (Prepared by the Research Triangle Institute-University of North Carolina Evidence-based Practice Center under Contract No. 290-97-0011);West,2002

4. Bias in clinical intervention research;Gluud;Am J Epidemiol,2006

5. The art of quality assessment of RCTs included in systematic reviews;Verhagen;J Clin Epidemiol,2001

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