@article{ref1,
title="Epidemiology of infectious and non-infectious disease: some comparisons",
journal="American journal of epidemiology",
year="1973",
author="Lilienfeld, A. M.",
volume="97",
number="3",
pages="135-147",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-9262",
doi="",
url="http://dx.doi.org/"
}