@article{ref1,
title="An epidemiological and ecological study of risk factors for narcotics overdose. I. Retrospective study of psychosocial factors",
journal="International journal of the addictions",
year="1974",
author="Force, E. E. and Millar, J. W.",
volume="9",
number="3",
pages="481-487",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0020-773X",
doi="",
url="http://dx.doi.org/"
}