title: Origins and early development of the case-control study: Part 1--Early evolution.
authors.forename: Aileen
authors.initials: A
authors.lastname: Neilson
authors.forename: Heinz
authors.initials: H
authors.lastname: Schneider
mesh_terms: D016022:Case-Control Studies; D015897:Comorbidity; D017048:Health Care Costs; D006801:Humans; D009765:Obesity / Q000191:economics / Q000453:epidemiology* / Q000517:prevention & control; D012306:Risk; D013557:Switzerland / Q000453:epidemiology