@article{ref1,
title="Death as an expression of functional disease",
journal="Mayo Clinic proceedings",
year="1974",
author="Pruitt, R. D.",
volume="49",
number="9",
pages="627-634",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0025-6196",
doi="",
url="http://dx.doi.org/"
}