Okaga, M [Effect of biliary tract obstruction and cholangitis on serum CA 19-9 levels]. [electronic resource] - Nihon Shokakibyo Gakkai zasshi = The Japanese journal of gastro-enterology May 1985 - 1418 p. digital Publication Type: Journal Article ISSN: 0446-6586 Subjects--Topical Terms: Antigens, Neoplasm--analysisAntigens, Surface--analysisAntigens, Tumor-Associated, CarbohydrateCholangitis--immunologyCholestasis--immunologyHumans