@article{ref1,
title="Naltrexone abuse and risk of suicide",
journal="Journal of nervous and mental disease",
year="1993",
author="Lerner, A. G. and Sigal, M. and Gelkopf, Marc",
volume="181",
number="11",
pages="706-707",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0022-3018",
doi="",
url="http://dx.doi.org/"
}