title: On the essentials of etiological research for preventive medicine.
authors: Department of Social and Preventive Medicine, School of Public Health, University of Montreal, Montreal, QC, Canada, igor.karp@gmail.com.
authors: Igor
authors: I
authors: Karp
authors: Olli S
authors: OS
authors: Miettinen
mesh_terms: D016021:Epidemiologic Studies; D006801:Humans; D011315:Preventive Medicine; D012106:Research