@article{ref1,
title="The threat of suicide",
journal="Diseases of the nervous system",
year="1955",
author="Siegal, L. J. and Friedman, Joseph H.",
volume="16",
number="2",
pages="37-46",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0012-3714",
doi="",
url="http://dx.doi.org/"
}