TY - GEN ED - Scientific Institute of Public Health. REITOX Belgian Focal Point TI - Belgian national report on drugs 1999 : 1998 developments and trends and key issues PY - 1999/// CY - Brussels PB - BIRN KW - Belgiƫ KW - bevolkingsonderzoek KW - Brussel KW - drugs KW - Duitstalige Gemeenschap KW - epidemiologie KW - onderzoeksrapporten KW - Vlaanderen KW - Walloniƫ ER -