@article{ref1,
title="The 1952 fog cohort study",
journal="British journal of preventive and social medicine",
year="1973",
author="Waller, R. E. and Brooks, A. G. and Adler, M. W.",
volume="27",
number="1",
pages="68-69",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0007-1242",
doi="",
url="http://dx.doi.org/"
}