@article{ref1,
title="Groin strain injuries in ice hockey",
journal="Journal of sports medicine",
year="1973",
author="Merrifield, H. H. and Cowan, R. F.",
volume="1",
number="2",
pages="41-42",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0090-4201",
doi="",
url="http://dx.doi.org/"
}