@article{ref1,
title="Influence of prolonged carbon monoxide exposure and high altitude on the composition of blood and urine in man",
journal="Scandinavian journal of clinical and laboratory investigation supplementum",
year="1968",
author="Kjeldsen, K. and Damgaard, F.",
volume="103",
number="",
pages="20-25",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0085-591X",
doi="",
url="http://dx.doi.org/"
}