@article{ref1,
title="Carbon monoxide effect on exercise-induced angina pectoris",
journal="Annals of internal medicine",
year="1973",
author="Aronow, Wilbert S. and Isbell, M. W.",
volume="79",
number="3",
pages="392-395",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-4819",
doi="",
url="http://dx.doi.org/"
}