Tsivenko, A., Cherkova, N., Panchenko, I. and Zabroda, S. 1. THE COMPARATIVE ANALYSIS OF APPLICATION OF HIGH-FREQUENCY ELECTROSURGICAL AND ULTRASONIC EQUIPMENTS FOR PERFORMANCE LAPAROSCOPIC CHOLECYSECTOMY FOR PATIENTS WITH GALLSTONE DISEASE. The Journal of V. N. Karazin Kharkiv National University, series "Medicine". 15 (1), 31-36.