TY - GEN ED - National Institute on Drug Abuse. Community Epidemiology Work Group TI - Epidemiologic trends in drug abuse : proceedings of the Community Epidemiology Work Group : highlights and executive summary : January 2007 PY - 2007/// CY - Bethesda PB - NIDA KW - bevolkingsonderzoek KW - drugs KW - epidemiologie KW - onderzoeksrapporten KW - prijzen KW - steden KW - VS ER -