1. Epidemiology of mental disorders;Weissman;Arch Gen Psychiatry,1978
2. The expectation of mental infirmity in a sample of the Danish population;Fremming,1951
3. Epidemiology of mental disorders in Iceland;Helgason;Acta Psychiatr Scand,1964
4. A census study of mental illness in Samsø;Nielsen;Psychol Med,1977
5. Affective disorders in a US urban community;Weissman;Arch Gen Psychiatry,1978