@article{ref1,
title="An electrical impedance plethysmograph",
journal="Aerospace medicine",
year="1963",
author="Lucchina, G. G. and Phipps, C. G.",
volume="34",
number="",
pages="1025-1031",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0001-9402",
doi="",
url="http://dx.doi.org/"
}