G. S. Shkol'nik
Cheboksary branch of The S. Fyodorov Eye Microsurgery Federal State Institution
Russian Federation

ophthalmologist at the Department of Ambulatory Surgery and Conservative Treatment

Traktorostroiteley ave. 10, Cheboksary, 428028, Russian Federation

S. F. Shkol'nik
Cheboksary branch of The S. Fyodorov Eye Microsurgery Federal State Institution
Russian Federation

PhD, head of operational unit

Traktorostroiteley ave., 10, Cheboksary, 428028, Russian Federation

V. N. Krasnozhen
Kazan state medical Academy — branch of Russian Medical Academy of Postgraduate Education
Russian Federation

MD, Professor, Head of the Otorhinolaryngology Department

Butlerova str., 36, Kazan, 420012, Russian Federation

N. P. Pashtaev
Cheboksary branch of The S. Fyodorov Eye Microsurgery Federal State Institution
Russian Federation

MD, Professor, Head of Cheboksary branch

Traktorostroiteley ave., 10, Cheboksary, 428028, Russian Federation