TY  - GEN
ED  - World Health Organization. Mental Health and Substance Dependence Department
TI  - Guide to drug abuse epidemiology
PY  - 2000///
CY  - [S.l.]
PB  - WHO
KW  - bevolkingsonderzoek
KW  - drugs
KW  - epidemiologie
KW  - monitoring
KW  - onderzoek
KW  - onderzoeksmethoden
KW  - VN
KW  - vragenlijsten
ER  -