title: Matching in epidemiology as a paradigm for twin research on the etiology of disease.
mesh_terms: D001699:Biometry; D004194:Disease / Q000209:etiology*; D004200:Diseases in Twins; D004812:Epidemiologic Methods; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008433:Mathematics; D008954:Models, Biological; D011247:Pregnancy; D014427:Twins