@article{ref1,
title="Death and the treatment of drug addiction: a five year study of deaths occurring to members of the Illinois Drug Abuse Program",
journal="Proceedings",
year="1973",
author="Chappel, J. N. and Mays, V. M. and Senay, E. C.",
volume="1",
number="",
pages="530-537",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0360-263X",
doi="",
url="http://dx.doi.org/"
}