@article{ref1,
title="Cannabis and its problems",
journal="Proceedings of the Royal Society of Medicine",
year="1973",
author="Paton, W. D.",
volume="66",
number="7",
pages="718-721",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0035-9157",
doi="",
url="http://dx.doi.org/"
}