@article{ref1,
title="The physician's role in preventive medicine and public health",
journal="Postgraduate medicine",
year="1953",
author="Leavell, H. R.",
volume="13",
number="4",
pages="287-291",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0032-5481",
doi="",
url="http://dx.doi.org/"
}