Bielykh, Olena, Marine Georgiyants, Olena Vysotska, and Anna Strashnenko. 2021. “Stress Response and State of Cognitive Functions in the Perioperative Period in Elderly Patients During Laparoscopic Cholecystectomy”. ScienceRise: Medical Science, no. 1 (40) (February):34-39. https://doi.org/10.15587/2519-4798.2021.224892.