Al-Kawas, F H Endoscopic management of primary sclerosing cholangitis: less is better! [electronic resource] - The American journal of gastroenterology Sep 1999 - 2235-6 p. digital Publication Type: Comment; Editorial ISSN: 0002-9270 Standard No.: 10.1111/j.1572-0241.1999.02335.x doi Subjects--Topical Terms: Cholangiopancreatography, Endoscopic RetrogradeCholangitis, Sclerosing--surgeryHumans