@article{ref1,
title="Validity and comparisons of tibiofemoral orientations and displacement using a femoral tracking device during early to mid stance of walking",
journal="Gait and posture",
year="2004",
author="Cuddeford, T and Yack, H. John and Houck, J",
volume="19",
number="1",
pages="76-84",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0966-6362",
doi="",
url="http://dx.doi.org/"
}