@article{ref1,
title="Breath and urine alcohol. Practical considerations of simultaneous determinations",
journal="Rocky Mountain medical journal",
year="1969",
author="Heise, H. A.",
volume="66",
number="6",
pages="37-38",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0035-760X",
doi="",
url="http://dx.doi.org/"
}