Druzhkin, M.V. and Klymenko, A.V. 2025. Effect of Surgical Intervention on Proteolytic Activity of Blood in Chronic Venous Disease of the Lower Extremities. Ukrainian Journal of Cardiovascular Surgery. 33, 4 (Dec. 2025), 106-112. DOI:https://doi.org/10.63181/ujcvs.2025.33(4).106-112.