@article{ref1,
title="External hip protectors and risk of hip fracture",
journal="JAMA journal of the American Medical Association",
year="2003",
author="Cummings, P. and Weiss, Noel S.",
volume="290",
number="7",
pages="884; author reply 884-5",
abstract="Abstract unavailable.",
language="",
issn="0098-7484",
doi="10.1001/jama.290.7.884-a",
url="http://dx.doi.org/10.1001/jama.290.7.884-a"
}