@article{ref1,
title="Observations on suicide in chronic schizophrenics",
journal="Comprehensive psychiatry",
year="1974",
author="Yarden, P. E.",
volume="15",
number="4",
pages="325-333",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0010-440X",
doi="",
url="http://dx.doi.org/"
}