title: Systematic reviews in health care: Assessing the quality of controlled clinical trials.
authors: Department of Social and Preventive Medicine, University of Bern, Bern, 3012 Switzerland.
authors: P
authors: P
authors: Jüni
authors: D G
authors: DG
authors: Altman
authors: M
authors: M
authors: Egger
mesh_terms: D015982:Bias; D018849:Controlled Clinical Trials as Topic / Q000592:standards*; D006801:Humans; D015201:Meta-Analysis as Topic; D015203:Reproducibility of Results