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- european radiology4
- journal of gastrointestinal surgery3
- journal of hepato-biliary-pancreatic surgery3
- der gastroenterologe: zeitschrift fur gastroenterologie und hepatologie2
- die onkologie: organ der deutschen krebsgesellschaft e.v.2
- surgical endoscopy: and other interventional techniquesofficial journal of the society of american gastrointestinal and endoscopic surgeons (sages) and european association for endoscopic surgery (eaes)2
- bmc cancer1
- bmc complementary and alternative medicine1
- bmc gastroenterology1