@article{ref1,
title="American Academy of Pediatrics Committee on Sports Medicine: Recommendations for participation in competitive sports",
journal="Pediatrics",
year="1988",
author="",
volume="81",
number="5",
pages="737-739",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0031-4005",
doi="",
url="http://dx.doi.org/"
}