Tyvonchuk Oleksandr Stepanovych. Gastric bypass in the surgical treatment of morbid obesity and metabolic disorder : д.мед.н. : spec.. 14.01.03 - Хірургія : presented. 2010-04-23; popup.evolution: .; National institute of surgery and transplantology named after Shalimov O.O. of the Academy of Medical Sciences of Ukraine. – , 0510U000324.

Updated: 2026-10-27