@article{ref1,
title="Physical activity and public health",
journal="JAMA journal of the American Medical Association",
year="1995",
author="Pugh, C. B. and Waller, Anna E. and Marshall, Stephen W.",
volume="274",
number="7",
pages="533; author reply 535-533; author reply 535",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0098-7484",
doi="",
url="http://dx.doi.org/"
}