Affiliation: | 1. Department of Community Health &2. Psychiatry , University of the West Indies , Mona, Kingston 7, Kingston, Jamaica roger.gibson02@uwimona.edu.jm;4. Department of Critical Care , Hospital General Juan Bruno Zayas Alfonso, Carretera Caney , Santiago de Cuba, Santiago, Cuba;5. Department of Psychiatry , Hospital General Juan Bruno Zayas Alfonso, Carretera Caney , Santiago de Cuba, Santiago, Cuba |