1. Determinants and Risk Factors; Health Promotion Cluster; Regional Office for Africa; World Health Organization; PO BOX 06; Brazzaville; Republic of Congo
2. Management of Substance Abuse; Department of Mental Health and Substance Abuse; World Health Organization; 20 Avenue Appia; 1211; Geneva 27; Switzerland
3. Stop TB Department; World Health Organization; 20 Avenue Appia; 1211; Geneva 27; Switzerland