@article{ref1,
title="Tired surgical trainees. specialist registrars working in district general hospitals often travel considerable distances while tired",
journal="British medical journal: BMJ",
year="2002",
author="Townley, S. A.",
volume="324",
number="7346",
pages="1154-1154",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}