Snisar, L., RysyevА., Poperechnyi, I., Filonov, V., Ostapenko, T., Marchenko, V. and Dzhur, V. 2023. Association between baseline intact parathyroid hormone levels, COVID-19 severity, and long-term outcomes in patients undergoing hemodialysis: A multicenter retrospective study. Ukrainian Journal of Nephrology and Dialysis. 1(81) (Dec. 2023), 27-34. DOI:https://doi.org/10.31450/ukrjnd.1(81).2024.04.