TY - GEN AU - King, Leslie A. AU - Sedefov, Roumen TI - Early-warning system on new psychoactive substances : operating guidelines [PDF] SN - 9789291682812 PY - 2007/// CY - Lisbon PB - EMCDDA KW - drugs KW - early warning system KW - epidemiologie KW - monitoring KW - richtlijnen UR - http://www.google.com/search?q=Early-warning-system-on-new-psychoactive-substances operating-guidelines ER -