@article{ref1,
title="COMPETITIVE athletics: a statement of policy: report of the Committee on School Health, American Academy of Pediatrics",
journal="Pennsylvania medical journal",
year="1957",
author="",
volume="60",
number="5",
pages="627-629",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0096-0667",
doi="",
url="http://dx.doi.org/"
}