@article{ref1,
title="Hereditary and environmental factors in the causation of manic-depressive psychoses and dementia præcox",
journal="American journal of psychiatry",
year="1940",
author="Pollock, Horatio M. and Malzberg, Benjamin",
volume="96",
number="5",
pages="1227-1244",
abstract="KEYWORDS: Suicide<p />",
language="en",
issn="0002-953X",
doi="10.1176/ajp.96.5.1227",
url="http://dx.doi.org/10.1176/ajp.96.5.1227"
}