OKINAKA, S A case report on the development of biliary tract cancer eleven years after the injection of thorotrast. [electronic resource] - The American journal of roentgenology, radium therapy, and nuclear medicine Nov 1957 - 812-8 p. digital Publication Type: Journal Article ISSN: 0002-9580 Subjects--Topical Terms: Biliary TractBiliary Tract NeoplasmsContrast Media--adverse effectsHumansInjectionsThorium Dioxide