@article{ref1,
title="Hazards of swimming and diving without diving equipment",
journal="Zeitschrift für Allgemeinmedizin",
year="1971",
author="Schüttert, B.",
volume="47",
number="21",
pages="1064-1067",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0300-8673",
doi="",
url="http://dx.doi.org/"
}