@article{ref1,
title="Effect of the moon on general practitioner's on call work load",
journal="Journal of epidemiology and community health",
year="1994",
author="Macdonald, L. and Perkins, P. and Pickering, R.",
volume="48",
number="3",
pages="323-324",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0143-005X",
doi="",
url="http://dx.doi.org/"
}