@article{ref1,
title="Protection of the head and neck in sports",
journal="JAMA journal of the American Medical Association",
year="1962",
author="Gurdjian, Elisha S. and Lissner, H. R. and Patrick, L. M.",
volume="182",
number="",
pages="509-512",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0098-7484",
doi="",
url="http://dx.doi.org/"
}