@article{ref1,
title="and"nad",
journal="Therapie der Gegenwart",
year="1975",
author="Krefft, S.",
volume="114",
number="2",
pages="190-2, 195",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0040-5965",
doi="",
url="http://dx.doi.org/"
}