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Chiappetta, Sonja, Christine Stier, Oliver Scheffel, Sophia Theodoridou, and Rudolf Weiner. "The First Case Report of Failed Single-anastomosis-duodeno-ileal Bypass Converted to One Anastomosis Gastric Bypass/Mini-gastric Bypass." Int J Surg Case Rep 2017.

Chiappetta, Sonja, et al. "The First Case Report of Failed Single-anastomosis-duodeno-ileal Bypass Converted to One Anastomosis Gastric Bypass/Mini-gastric Bypass." Int J Surg Case Rep 2017.