@article{ref1,
title="Chronic disease in former college students. IX. Characteristics in youth that predispose to suicide and accidental death in later life",
journal="American journal of public health",
year="1969",
author="Paffenbarger, R. S. Jr and King, S. H. and Wing, A. L.",
volume="59",
number="6",
pages="900-908",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0090-0036",
doi="",
url="http://dx.doi.org/"
}