TY  - GEN
AU  - Harrison, Lana
AU  - Hughes, Arthur 
TI  - The validity of self-reported drug use : improving the accuracy of survey estimates
T2  - NIDA research monograph series
PY  - 1997///
CY  - Rockville
PB  - NIDA
KW  - drugs
KW  - enquêtes
KW  - epidemiologie
KW  - haaronderzoek
KW  - onderzoek
KW  - onderzoeksmethoden
KW  - vragenlijsten
ER  -