title: [Genetic epidemiology and twin research].
authors.forename: L M
authors.initials: LM
authors.lastname: Irgens
mesh_terms: D004200:Diseases in Twins / Q000453:epidemiology / Q000209:etiology / Q000235:genetics; D020022:Genetic Predisposition to Disease; D006801:Humans; D012106:Research; D018433:Twin Studies as Topic