@article{ref1,
title="Hearts and drivers",
journal="Northwest medicine",
year="1970",
author="Levenson, R. M.",
volume="69",
number="8",
pages="553 passim-553 passim",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0029-3385",
doi="",
url="http://dx.doi.org/"
}