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2. Case identification in psychiatric epidemiology: Methods and problems;Blum;Milbank Meml. Fund Q Bull.,1962
3. The problem of validity in field studies of psychological disorder;Dohrenwend;J. Abnorm. Psychol.,1965
4. Problems of data collection and nomenclature;Gruenberg,1955
5. Social structures and mental disorders: Competing hypotheses of explanation;Dunham,1961