@article{ref1,
title="Long-term followup of knee injuries in high school football players",
journal="American journal of sports medicine",
year="1984",
author="Moretz, J. A. and Harlan, S. D. and Goodrich, J. and Walters, R.",
volume="12",
number="4",
pages="298-300",
abstract="Twenty-three American football participants were studied 20 years after high school competition, as well as 11 age-matched controls, to assess the development of knee osteoarthritis. No statistically significant increase in osteoarthritis could be demonstrated radiographically, subjectively, or objectively. A significant increase in knee joint osteoarthritis was found in the subgroup of football players who had sustained a knee injury.<p /><p>Language: en</p>",
language="en",
issn="0363-5465",
doi="",
url="http://dx.doi.org/"
}