title: [Risk factors for biliary tract cancers: Helicobacter species].
authors.affiliation: First Department of Surgery, Nippon Medical School, Matsukura Central Clinic.
authors.forename: Norio
authors.initials: N
authors.lastname: Matsukura
mesh_terms: D001659:Biliary Tract / Q000382:microbiology*; D001661:Biliary Tract Neoplasms / Q000382:microbiology*; D002761:Cholangitis / Q000382:microbiology; D016998:Helicobacter / Q000302:isolation & purification / Q000472:pathogenicity; D016481:Helicobacter Infections; D006801:Humans; D012307:Risk Factors