STUDY OF HEART RATE AND CORTICOSTERONE VARIABILITY IN THE SIMULATION OF RHINO-SURGICAL INTERVENTIONS IN BIOLOGICAL OBJECTS ArticlePopadyuk Valentin, Kostyaeva Margarita, Kastyro Igor, Shmaevsky Pavel, Khamidulin George, Dragunova Svetlana, Severina Evgenia, Yunusov Teymur, Kleyman Veronika, Kuznetsov Nikita, Kazakova Olga, Tychinskaya Daria, Kostyuk Polina, Tsigura Daria, Ezhova Daria, Ezhova EkaterinaOtorhinolaryngology, Head and Neck Pathology. Том 2. 2023. С. 4-9