@article{ref1,
title="Foreign bodies in the maxillary sinus",
journal="Stomatologiia (Mosk)",
year="1990",
author="Neupokoev, N. I. and Neupokoeva, N. V.",
volume="69",
number="2",
pages="79-79",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0039-1735",
doi="",
url="http://dx.doi.org/"
}