Gevkaliuk, Nataliia. “The State of the Barrier Function of the Oral Cavity of Patients With a History of Acute Respiratory Disease of COVID-19”. Actual problems of modern medicine, no. 11 (June 27, 2023): 3-13. Accessed December 6, 2025. https://periodicals.karazin.ua/apmm/article/view/21995.