@article{ref1,
title="The social determinants of health: what are the three key roles for health promotion?",
journal="Health promotion journal of Australia",
year="2006",
author="Raphael, Dennis",
volume="17",
number="3",
pages="167-170",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1036-1073",
doi="",
url="http://dx.doi.org/"
}