@article{ref1,
title="Rigorous statistical reliability, validity, and responsiveness testing of the Cincinnati Knee Rating System in 350 subjects with uninjured, injured, or anterior cruciate ligament-reconstructed knee",
journal="American journal of sports medicine",
year="2000",
author="Roos, E.",
volume="28",
number="3",
pages="436-438",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0363-5465",
doi="",
url="http://dx.doi.org/"
}