@article{ref1,
title="Cannabis",
journal="Medicine (Abingdon)",
year="2003",
author="Vale, Allister",
volume="31",
number="10",
pages="40-40",
abstract="Cannabis (Figure 1) is obtained from the plant Cannabis sativa, which contains many active chemicals including the tetrahydrocannabinols. Delta(9)-tetrahydrocannabinol is responsible for the psychological effects seen with cannabis use. Smoking is the usual route of abuse, but cannabis is occasionally ingested as a 'cake', made into a 'tea' or injected intravenously. Cannabis abuse is often a group activity.<p />",
language="",
issn="1357-3039",
doi="10.1383/medc.31.10.40.27812",
url="http://dx.doi.org/10.1383/medc.31.10.40.27812"
}