@article{ref1,
title="Relation of suicide rates to social conditions: Evidence from U.S. vital statistics",
journal="Public health reports (1896)",
year="1963",
author="Macmahon, B. and Johnson, S. and Pugh, T. F.",
volume="78",
number="4",
pages="285-293",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0094-6214",
doi="",
url="http://dx.doi.org/"
}