@article{ref1,
title="Propoxyphene (Darvon) hepatotoxicity",
journal="American journal of digestive diseases",
year="1971",
author="Klein, N. C. and Magida, M. G.",
volume="16",
number="5",
pages="467-469",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-9211",
doi="",
url="http://dx.doi.org/"
}