@article{ref1,
title="Factors in Suicide",
journal="Boston medical and surgical journal",
year="1921",
author="Ring, AH",
volume="185",
number="",
pages="650-656",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0096-6762",
doi="",
url="http://dx.doi.org/"
}