title: Commentary: summary statistics of poor quality studies must be treated cautiously.
authors.affiliation: University of Pennsylvania School of Medicine, Center for Clinical Epidemiology and Biostatistics, Philadelphia 19104-6021, USA. berlin@cceb.med.upenn.edu
authors.forename: J A
authors.initials: JA
authors.lastname: Berlin
mesh_terms: D019072:Antibiotic Prophylaxis; D002675:Child, Preschool; D006801:Humans; D008457:Measles / Q000517:prevention & control*; D015201:Meta-Analysis as Topic; D016017:Odds Ratio; D011014:Pneumonia / Q000517:prevention & control*; D016032:Randomized Controlled Trials as Topic / Q000592:standards*; D018805:Sepsis / Q000517:prevention & control*; D016896:Treatment Outcome