title: Bias in case-control studies. A review.
authors: Department of Epidemiology and Biostatics, McGill University, Montreal, Canada.
authors: J A
authors: JA
authors: Kopec
authors: J M
authors: JM
authors: Esdaile
mesh_terms: D015982:Bias; D016022:Case-Control Studies; D006801:Humans; D011159:Population Surveillance; D016032:Randomized Controlled Trials as Topic