Balytskyy, V. V. “Comparative Estimation of a Pain Syndrome in Patients After Combined Operations for Coexistent Pathology of Anal Channel and Rectum With Application of Modern and Standard Surgical Technologies”. Klinicheskaia Khirurgiia, Vol. 88, no. 5-6, Oct. 2021, pp. 36-41, doi:10.26779/2522-1396.2021.5-6.36.