Kul’chyns’kyi, Andriy B, Walery Zukow, Tetyana A Korolyshyn, and Igor L Popovych. “Interrelations Between Changes in Parameters of HRV, EEG and Humoral Immunity at Patients With Chronic Pyelonephritis and Cholecystitis”. Journal of Education, Health and Sport 7, no. 9 (September 10, 2017): 439–459. Accessed December 4, 2023. https://apcz.umk.pl/JEHS/article/view/4933.