@article{ref1,
title="The broken heart syndrome",
journal="Cleveland Clinic journal of medicine",
year="2007",
author="Wittstein, Ilan S.",
volume="74",
number="Suppl 1",
pages="S17-S22",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0891-1150",
doi="",
url="http://dx.doi.org/"
}