@article{ref1,
title="Twin studies on the psychopathology of suicide",
journal="Journal of heredity",
year="1946",
author="Kallmann, F. J. and Anastasio, M. M.",
volume="37",
number="",
pages="171-181",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-1503",
doi="10.1093/oxfordjournals.jhered.a105608",
url="http://dx.doi.org/10.1093/oxfordjournals.jhered.a105608"
}