TY - GEN AU - Ouwehand, A.W. AU - Cruts, A.A.N. TI - Profile harddrug clients in the Dutch treatment and care of drug addicts SN - 9057260093 PY - 1997/// CY - Houten PB - IVV KW - cocaïne KW - drugs KW - epidemiologie KW - heroïne KW - hulpverlening KW - Nederland KW - onderzoeksrapporten KW - utilization studies ER -