@article{ref1,
title="Spinal fractures in blowhole jumpers",
journal="Medical journal of Australia",
year="1994",
author="Petchell, J. F. and Ryan, M. D.",
volume="161",
number="11-12",
pages="725-726",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0025-729X",
doi="",
url="http://dx.doi.org/"
}