@article{ref1,
title="Psychiatric illness in drug abusers",
journal="New England journal of medicine",
year="1980",
author="Shaffer, H. and Burglass, M. E. and Whitehead, J.",
volume="302",
number="15",
pages="869-869",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-4793",
doi="",
url="http://dx.doi.org/"
}