@article{Hall2009,
author = {Hall, W. and Degenhardt, L.},
title= {Adverse health effects of non-medical cannabis use},
year = {2009},
doi = {10.1016/S0140-6736(09)61037-0},
journal = {The Lancet},
volume = {374},
number = {9698},
pages = {1383--1391},
}