@article{ref1,
title="Electrocardiographic changes in workers habitually exposed to carbon monoxide",
journal="La Medicina del lavoro",
year="1966",
author="Zanardi, S. and Villa, A. and Monti, G.",
volume="57",
number="12",
pages="761-770",
abstract="<p>[Abstract unavailable]</p><p>Language: it</p>",
language="it",
issn="0025-7818",
doi="",
url="http://dx.doi.org/"
}