1. Specialized Cardiac Surgical Clinical Hospital named after Аcademician Korolyov B.A.
2. Specialized Cardiac Surgical Clinical Hospital named after Аcademician Korolyov B.A.; Privolzhsky Research Medical University
3. Nizhny Novgorod Regional Clinical Oncological Dispensary
4. Privolzhsky Research Medical University
5. Ulyanov Chuvash State University; Extension Course Institute for Medical Practitioners of the Ministry of Health of the Chuvash Republic; Federal Center of Traumatology, Orthopedics and Endoprosthetics