@article{Dregalkina2019causes,,
author={Dregalkina, A.A. and Kostina, I.N. and Salii, O.V.},
title={CAUSES, DIAGNOSIS AND TREATMENT OF MAXILLARY SINUSITIS,                                  THE CURRENT STATE OF THE PROBLEM},
journal={Actual problems in dentistry},
publisher={TIRAZH Publishing House},
year={2019},
pages={82-89},
volume={15},
issue={3},
}