Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector5954710.17816/kazmj59547Research ArticleAchievements of Russian otorhinolaryngology in the fight against purulent otitis media, mastoiditis and their complicationsAkimovV. N.<p>Department of Ear, Throat and Nose Diseases</p>info@eco-vector.comMedical Institute. S. V. Kurashova2909196748541482701202127012021Copyright © 2021, Akimov V.N.2021<p>The approaching 50th anniversary of the Great October Socialist Revolution prompts to take stock in various fields of medical science and practice.</p>Kazan Medical archiveКазанский медицинский архив