@article{ref1,
title="Unusual nasal foreign body. Hardened concrete as a nasal foreign body",
journal="HNO",
year="1998",
author="Fischer, M. and Bachor, E. and Dietrich, U. and Jahnke, K.",
volume="46",
number="6",
pages="604-605",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0017-6192",
doi="",
url="http://dx.doi.org/"
}