title: Cholangiocarcinoma.
authors.affiliation: Department of General, Visceral and Transplant Surgery, Comprehensive Cancer Center, University of Tübingen, Tübingen, Germany.
authors.forename: Alfred
authors.initials: A
authors.lastname: Königsrainer
authors.affiliation: Department of Internal Medicine I, Comprehensive Cancer Center, Medical University Hospital, Tübingen, Germany.
authors.forename: Nisar P
authors.initials: NP
authors.lastname: Malek