@article{ref1,
title="Angina pectoris following a crushing accident",
journal="British heart journal",
year="1939",
author="Campbell, Mark",
volume="1",
number="2",
pages="177-180",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0007-0769",
doi="",
url="http://dx.doi.org/"
}