%0 Journal Article %J Psychological Medicine %D 2008 %T Twelve-month mental disorders in South Africa: prevalence, service use and demographic correlates in the population-based South African Stress and Health Study %A D.R. Williams %A Herman, A. %A Stein, D.J. %A Heeringa, S.G. %A Jackson, P.B. %A Moomal, H. %A Kessler, R. C. %B Psychological Medicine %V 38 %P 211-220 %G eng