title: [Interpretation of epidemiologic studies].
authors.affiliation: Laboratoire d'épidémiologie et de santé publique, faculté de médecine, 67085 Strasbourg.
authors.forename: Paul
authors.initials: P
authors.lastname: Schaffer
authors.forename: Michel
authors.initials: M
authors.lastname: Velten
mesh_terms: D015986:Confounding Factors, Epidemiologic; D016021:Epidemiologic Studies; D006801:Humans; D016032:Randomized Controlled Trials as Topic; D012107:Research Design; D013223:Statistics as Topic