@article{ref1,
title="Rugby union",
journal="Spinal Cord",
year="2002",
author="Williams, J. P.",
volume="40",
number="12",
pages="669-669",
abstract="Abstract unavailable.",
language="",
issn="1362-4393",
doi="10.1038/sj.sc.3101431",
url="http://dx.doi.org/10.1038/sj.sc.3101431"
}