@article{ref1,
title="Bicycle-riding circumstances and injuries in school-age children",
journal="Archives of pediatrics and adolescent medicine",
year="1997",
author="Williams, MS",
volume="151",
number="10",
pages="1067-1067",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1072-4710",
doi="",
url="http://dx.doi.org/"
}