@article{ref1,
title="A rare case of a liquid foreign body in the paranasal sinuses",
journal="Otolaryngologia polska",
year="1970",
author="Klaudel, A. and Pilch, J. and Wnuk, H. and Zychowski, J.",
volume="24",
number="5",
pages="559-560",
abstract="<p>[Abstract unavailable]</p><p>Language: pl</p>",
language="pl",
issn="0030-6657",
doi="",
url="http://dx.doi.org/"
}