@article{ref1,
title="Certificate of fitness for athletic divers",
journal="Deutsche Medizinische Wochenschrift",
year="2002",
author="Matthys, H.",
volume="127",
number="5",
pages="223-223",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0012-0472",
doi="10.1055/s-2002-19902",
url="http://dx.doi.org/10.1055/s-2002-19902"
}