TY  - GEN
AU  - Sharp, Frances
AU  - Neaman, Rachel
TI  - Modelling drug use : methods to quantify and understand hidden processes
T2  - EMCDDA scientific monograph series
SN  - 9291680567
PY  - 2001///
CY  - Luxembourg
PB  - Office for Official Publications of the European Communities
KW  - beleid
KW  - drugs
KW  - epidemiologie
KW  - indicatoren
KW  - onderzoeksmethoden
ER  -