@article{ref1,
title="The incidence of anterior cruciate ligament (ACL) injuries among competitive alpine skiers",
journal="American journal of sports medicine",
year="2008",
author="Richards, Owen R. and Carmont, Michael R.",
volume="36",
number="7",
pages="e1; author reply e1-e1; author reply e1",
abstract="[Abstract unavailable]  <p>Letter</p>  <p>Language: en</p>",
language="en",
issn="0363-5465",
doi="10.1177/0363546508315467",
url="http://dx.doi.org/10.1177/0363546508315467"
}