@article{ref1,
title="Cytotoxic factor in a patient with sudden death occurring during exercise",
journal="Acta allergologica",
year="1963",
author="Forssman, O. and Bergman, H.",
volume="18",
number="",
pages="471-473",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-5148",
doi="",
url="http://dx.doi.org/"
}