About the Authors
Department for Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Hannover, Germany
J. W. Goethe University Hospital, Frankfurt am Main, Germany
Department for Visceral Surgery, Hannover Medical School, Hannover, Germany
The authors have declared that no competing interests exist.
Conceived and designed the experiments: VS MC HW. Performed the experiments: VS SL PVS JJ JG. Analyzed the data: VS SL MC HW. Contributed reagents/materials/analysis tools: JD FH HB CS. Wrote the paper: VS MPM MC HW.