@article{ref1,
title="Motor vehicle traffic accidents in Canada, 1978-87 by time of occurrence",
journal="Canadian journal of public health",
year="1993",
author="Waters, C. and Gibbons, L. and Semenciw, R. and Mao, Y.",
volume="84",
number="1",
pages="58-59",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0008-4263",
doi="",
url="http://dx.doi.org/"
}