@article{ref1,
title="Aggravation of the accident sequelae following shoulder contusion?",
journal="Monatsschrift fur Unfallheilkunde, Versicherungs-, Versorgungs- und Verkehrsmedizin",
year="1970",
author="Zehender, K.",
volume="73",
number="7",
pages="342-345",
abstract="<p>[Abstract unavailable]</p> <p>Language: de</p>",
language="de",
issn="0026-9336",
doi="",
url="http://dx.doi.org/"
}