@article{ref1,
title="Medical aspects of adolescents participating in sports",
journal="Western journal of medicine",
year="1974",
author="Hurwitz, S.",
volume="121",
number="5",
pages="443-447",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0093-0415",
doi="",
url="http://dx.doi.org/"
}