@article{ref1,
title="Frequency and characteristics of emergency care services for middle-aged and elderly persons with maxillofacial injuries",
journal="Stomatologiia (Mosk)",
year="1987",
author="Zakson, M. L. and Kozliuk, V. I. and Gavrilova, L. Z.",
volume="66",
number="5",
pages="70-71",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0039-1735",
doi="",
url="http://dx.doi.org/"
}