@article{ref1,
title="Dangers to elderly pedestrians at crosswalks",
journal="JAMA journal of the American Medical Association",
year="2003",
author="Hill, GJ",
volume="289",
number="10",
pages="1244; author reply 1245-1244; author reply 1245",
abstract="Abstract unavailable.",
language="",
issn="0098-7484",
doi="",
url="http://dx.doi.org/"
}