TY - GEN AU - Miller, William R. TI - Enhancing motivation for change in substance abuse treatment T2 - Treatment improvement protocl [TIP] series PY - 1999/// CY - Rockville PB - CSAT KW - alcohol KW - drugs KW - hulpverlening KW - motivatie KW - motiverende gespreksvoering KW - behandelichtlijnen KW - VS ER -