@article{ref1,
title="The effect of active transport, transport systems, and urban design on population health",
journal="Journal of environmental and public health",
year="2013",
author="Wen, Li Ming and Rissel, Chris E. and Fu, Hua",
volume="2013",
number="",
pages="457159-457159",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1687-9805",
doi="10.1155/2013/457159",
url="http://dx.doi.org/10.1155/2013/457159"
}