TY  - RPRT
TI  - Internet and paper self-help materials for problem drinking: is there an additive effect?
AU  - John A Cunningham
AU  - Keith Humphreys
AU  - Anja Koski-Jännes
AU  - Joanne Cordingley
PY  - 2005
DO  - 10.1016/j.addbeh.2005.03.003
UR  - https://pubmed.ncbi.nlm.nih.gov/15893433/
ID  - 15893433
ER  -