@article{ref1,
title="The game of head injury hop-scotch, UK style",
journal="Quality in health care",
year="1994",
author="Field, K.",
volume="3",
number="4",
pages="217-220",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0963-8172",
doi="",
url="http://dx.doi.org/"
}