@article{ref1,
title="Color-blind drivers of motor vehicles",
journal="CMAJ : Canadian Medical Association journal",
year="1980",
author="Howard, A. H.",
volume="122",
number="6",
pages="638-638",
abstract="Abstract unavailable.",
language="",
issn="0820-3946",
doi="",
url="http://dx.doi.org/"
}