@article{ref1,
title="Epidemiology of health and illness",
journal="British medical journal: BMJ",
year="2005",
author="Viner, Russell and Booy, Robert",
volume="330",
number="7488",
pages="411-414",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0959-8138",
doi="10.1136/bmj.330.7488.411",
url="http://dx.doi.org/10.1136/bmj.330.7488.411"
}