@article{ref1,
title="Risk assessment in schizophrenia",
journal="British journal of hospital medicine",
year="1997",
author="Heads, T. C.",
volume="57",
number="9",
pages="451-453",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0007-1064",
doi="",
url="http://dx.doi.org/"
}