Demyter, Inna, Dmytro Gudz, and Sergey Vorotyntsev. 2019. “Incidence of Postoperative Delirium According to Cognitive Status, Improved Responsiveness and Inflammatory Response at Elderly Patients in Urgent Abdominal Surgery”. Journal of Education, Health and Sport 9 (11):163-74. https://doi.org/10.12775/JEHS.2019.09.11.013.