@article{ref1,
title="Urban-rural suicide differentials in Minnesota 1967-1973",
journal="Minnesota medicine",
year="1980",
author="Barton, S. N. and Coombs, D. W. and Mukherjee, D.",
volume="63",
number="6",
pages="415-418",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0026-556X",
doi="",
url="http://dx.doi.org/"
}