@article{ref1,
title="Demographic factors in the incidence of mental illness",
journal="Military medicine",
year="1966",
author="Gunderson, E. K. and Arthur, R. J.",
volume="131",
number="5",
pages="429-433",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0026-4075",
doi="",
url="http://dx.doi.org/"
}