@article{ref1,
title="A preliminary study of drug abuse among psychiatric inpatients",
journal="Military medicine",
year="1972",
author="Nail, R. L. and Gunderson, E. K. and Thompson, F. A.",
volume="137",
number="3",
pages="119-121",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0026-4075",
doi="",
url="http://dx.doi.org/"
}