@article{ref1,
title="Angina pectoris and carbon monoxide",
journal="Annals of internal medicine",
year="1973",
author="Theodore, J.",
volume="78",
number="3",
pages="455-455",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-4819",
doi="",
url="http://dx.doi.org/"
}