@article{ref1,
title="Heart rate variability during the week of September 11, 2001",
journal="JAMA journal of the American Medical Association",
year="2002",
author="Lampert, Rachel and Baron, Suzanne J. and McPherson, Craig A. and Lee, Forrester A.",
volume="288",
number="5",
pages="575-575",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0098-7484",
doi="",
url="http://dx.doi.org/"
}