@article{ref1,
title="Retraction. Low back pain status in elite and semi-elite Australian football codes: a cross-sectional survey of football (soccer), Australian-rules, rugby league, rugby union and non-athletic controls",
journal="BMC musculoskeletal disorders",
year="2011",
author="",
volume="12",
number="",
pages="158-158",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1471-2474",
doi="10.1186/1471-2474-12-158",
url="http://dx.doi.org/10.1186/1471-2474-12-158"
}