TY  - RPRT
TI  - Perceived functions predict intensity of use and problems in young polysubstance users.
AU  - Annabel Boys
AU  - John Marsden
PY  - 2003
DO  - 10.1046/j.1360-0443.2003.00394.x
UR  - https://pubmed.ncbi.nlm.nih.gov/12814501/
ID  - 12814501
ER  -