@article{ref1,
title="Traumatic atlanto-occipital dislocations: value of the Powers ratio in diagnosis",
journal="Journal of the American Osteopathic Association",
year="1986",
author="Putnam, W. E. and Stratton, F. T. and Rohr, R. J. and Stitzell, W. and Roat, G.",
volume="86",
number="12",
pages="798-804",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0098-6151",
doi="",
url="http://dx.doi.org/"
}