@article{ref1,
title="Relationship of health practices and mortality",
journal="Preventive medicine",
year="1973",
author="Belloc, N. B.",
volume="2",
number="1",
pages="67-81",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0091-7435",
doi="",
url="http://dx.doi.org/"
}