From the bottom of my heart, I express my deepest gratitude to all the staff of the Department of Hepatopancreatobiliary Surgery and the Department of Anesthesiology-Intensive Care Unit No. 1. Special thanks to the head of the Department of hepatopancreatobiliary surgery Efanov Mikhail Germanovich, my attending surgeonTo Kazakov Ivan Vyacheslavovich, as well as to the anesthesiologist-resuscitator, Elena V. Novikova for her high level of professionalism, sincere support and sensitive attitude. It is a great happiness that such competent and skilled, talented and caring people work exactly where they are most needed. Everything you do helps save lives and restore lost health to people in cases that until recently seemed hopeless. Thank you from me and my entire family.