@article{ref1,
title="Traumatic armour heart",
journal="American heart journal",
year="1955",
author="Warburg, E.",
volume="49",
number="4",
pages="633-636",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-8703",
doi="",
url="http://dx.doi.org/"
}