4van Os J, Hanssen M, Bijl RV, et al. Prevalence of psychotic disorder and community level of psychotic symptoms: an urban-rural comparison. Arch Gen Psychiatry, 2001, 58: 663-668.
5Abou-Saleh MT, Ghubash R, Daradkeh TK. A1 Ain community psychiatric survey I: prevalence and socio-demographic correlates. Soc Psychiatry Psychiatr Epidemiol, 2001, 36: 20-28.
6Kringlen E, Torgersen S, Cramer V. A Norwegian psychiatric epidemiological study. Am J Psychiatry, 2001, 158: 1091-1098.
7Wittchen HU, Nelson CB, Lachner G. Prevalence of mental disorders and psychosocial impairments in adolescents and young adults. Psychol Med, 1998, 28: 109-126.
8Gassab L, Mechri A, Gaha L, et al. Bipolarity correlated factors in major depression: about 155 Tunisian inpatients. Encephale, 2002, 28: 283-289.