@article{ref1,
title="2 cases of poisoning with dextro propoxyphene agents difficult to treat",
journal="Lakartidningen",
year="1976",
author="Knutsen, O. and Lundholm, J. and Persson, L. and Sjöstrand, C. A.",
volume="73",
number="18",
pages="1735-1736",
abstract="<p>[Abstract unavailable]</p><p>Language: sv</p>",
language="sv",
issn="0023-7205",
doi="",
url="http://dx.doi.org/"
}