title: Editorial introduction.
authors.affiliation: aDepartment of General, Visceral and Transplantation SurgerybDepartment of General, Visceral, Vascular and Thoracic Surgery, Campus Virchow and Mitte, Charité - Universitätsmedizin Berlin, Berlin, Germany.
authors.forename: Andreas
authors.initials: A
authors.lastname: Pascher