@article{ref1,
title="Substance abuse in schizophrenics",
journal="British journal of psychiatry",
year="1994",
author="Soyka, M.",
volume="165",
number="6",
pages="836-837",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0007-1250",
doi="",
url="http://dx.doi.org/"
}