@article{ref1,
title="The most frequent changes of the electrocardiogram in air navigating personnel",
journal="Minerva medica",
year="1958",
author="Vincentelli, A. P. and Spinelli, I. F.",
volume="49",
number="63-64",
pages="3125-3126",
abstract="<p>[Abstract unavailable]</p><p>Language: it</p>",
language="it",
issn="0026-4806",
doi="",
url="http://dx.doi.org/"
}