@article{ref1,
title="Possibilities of instant resuscitation in drowning by means of an apparatus",
journal="Zeitschrift für Allgemeinmedizin",
year="1970",
author="Opitz, A. and Stoffregen, J.",
volume="46",
number="1",
pages="34-37",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0300-8673",
doi="",
url="http://dx.doi.org/"
}