@article{ref1,
title="The expression of the allocation concealment for randomised controlled trials needs to be improved",
journal="Injury",
year="2011",
author="Zhao, Xiang and Yan, Shi-Gui",
volume="42",
number="4",
pages="430-1; author reply 431",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0020-1383",
doi="10.1016/j.injury.2010.11.029",
url="http://dx.doi.org/10.1016/j.injury.2010.11.029"
}