@article{ref1,
title="Chronic disease in former college students. 3. Precursors of suicide in early and middle life",
journal="American journal of public health",
year="1966",
author="Paffenbarger, R. S. Jr and Asnes, D. P.",
volume="56",
number="7",
pages="1026-1036",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0090-0036",
doi="",
url="http://dx.doi.org/"
}