title: A prospective study concerning mental disorders of a total population investigated in 1947, 1957 and 1972. The Lundby study III (preliminary report).
mesh_terms: D006801:Humans; D008137:Longitudinal Studies; D001523:Mental Disorders / Q000453:epidemiology*; D011446:Prospective Studies; D012424:Rural Population; D012931:Social Environment; D013548:Sweden; D014505:Urban Population