@article{doi:10.1001/archpediatrics.2008.542,
author = {Kuntsche E and Simons-Morton B and Fotiou A and ter Bogt T and Kokkevi A and et al},
title = {DEcrease in adolescent cannabis use from 2002 to 2006 and links to evenings out with friends in 31 european and north american countries and regions},
journal = {Archives of Pediatrics & Adolescent Medicine},
volume = {163},
number = {2},
pages = {119-125},
year = {2009},
doi = {10.1001/archpediatrics.2008.542},
URL = { + http://dx.doi.org/10.1001/archpediatrics.2008.542},
eprint = {/data/Journals/PEDS/5126/poa80069_119_125.pdf}
}