@article{ref1,
title="Time flies",
journal="British medical journal: BMJ",
year="1999",
author="Adshead, Gwen",
volume="319",
number="7207",
pages="458-458",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}