@article{ref1,
title="Isolated trabecular fatigue fractures in the femoral head",
journal="Journal of bone and joint surgery: British volume",
year="1972",
author="Todd, R. C. and Freeman, M. A. and Pirie, C. J.",
volume="54",
number="4",
pages="723-728",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0301-620X",
doi="",
url="http://dx.doi.org/"
}