Oakley-Browne, M. A., Joyce, P. R., Wells, J. E., Bushnell, J. A., & Hornblow, A. R. (1989). Christchurch Psychiatric Epidemiology Study, Part II: Six Month and Other Period Prevalences of Specific Psychiatric Disorders. Australian & New Zealand Journal of Psychiatry, 23(3), 327-340. doi:10.1177/000486748902300319
Oakley-Browne, M. A., Joyce, P. R., Wells, J. E., Bushnell, J. A., & Hornblow, A. R. (1989). Christchurch Psychiatric Epidemiology Study, Part II: Six Month and Other Period Prevalences of Specific Psychiatric Disorders. Australian & New Zealand Journal of Psychiatry, 23(3), 327-340. doi:10.1177/000486748902300319