[1] Univ Klinikum Leipzig, Klin & Poliklin Viszeral Transplantat Thorax & Ge, Dept Operat Med DOPM, AoR, Liebigstr 20, D-04103 Leipzig, Germany
[2] Univ Klinikum Leipzig, Univ Krebszentrum Leipzig UCCL, AoR, Leipzig, Germany
[3] Agaplesion Markus Krankenhaus, Zentrum Speiserohren & Magenchirurg, Frankfurt, Germany
[4] Elisabeth Krankenhaus Essen, Contilia Zentrum Speiserohrenerkrankungen, Essen, Germany
[5] Univ Klinikum Leipzig, Inst Pathol, AoR, Leipzig, Germany