@article{ref1,
title="Behavioral factors associated with the etiology of physical disease: a social epidemiological approach",
journal="American journal of public health",
year="1974",
author="Syme, S. L.",
volume="64",
number="11",
pages="1043-1045",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0090-0036",
doi="",
url="http://dx.doi.org/"
}