Kravchenko, B., Klymenko, V., Kravchenko, S., Zakharchuk, A., & Tumanska, N. (2019). A comparative analysis of single-port and four-port laparoscopic cholecystectomies in patients with chronic calculous cholecystitis. Journal of Education, Health and Sport, 9(6), 514–521. Retrieved from https://apcz.umk.pl/JEHS/article/view/7151