@article{ref1,
title="The Gordon Wilson Lecture: work hours, sleep and patient safety in residency training",
journal="Transactions of the American Clinical and Climatological Association",
year="2006",
author="Czeisler, Charles A.",
volume="117",
number="",
pages="159-188",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0065-7778",
doi="",
url="http://dx.doi.org/"
}