title: Re: Impact of classification of hilar cholangiocarcinomas (Klatskin tumors) on incidence of intra- and extrahepatic cholangiocarcinoma in the United States.
authors.forename: Wolf-Rudiger
authors.initials: WR
authors.lastname: Matull
authors.forename: Shahid A
authors.initials: SA
authors.lastname: Khan
authors.forename: Stephen P
authors.initials: SP
authors.lastname: Pereira
mesh_terms: D001650:Bile Duct Neoplasms / Q000145:classification*; D017734:Bile Ducts, Extrahepatic; D001653:Bile Ducts, Intrahepatic; D018281:Cholangiocarcinoma / Q000453:epidemiology*; D006801:Humans; D015994:Incidence; D018285:Klatskin Tumor / Q000145:classification*; D014481:United States / Q000453:epidemiology