title: Primary neuroendocrine tumor of the extrahepatic biliary tree mimicking Klatskin tumor.
authors.forename: Konstantinos
authors.initials: K
authors.lastname: Tsalis
authors.forename: Georgios
authors.initials: G
authors.lastname: Vrakas
authors.forename: Triantafyllos
authors.initials: T
authors.lastname: Geroukis
authors.forename: Angeliki
authors.initials: A
authors.lastname: Cheva
authors.forename: Georgios Nikolaos
authors.initials: GN
authors.lastname: Roidos
authors.forename: Charalampos
authors.initials: C
authors.lastname: Lazarides