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Endoscopy|March 1, 1985
Combined therapy of malignant stenoses of the upper gastrointestinal tract by means of laser beam and bougienageJ F Riemann, C Ell, G Lux, et al.Endoscopy|January 1, 1986
Laser-resistant guide probe for laser treatment of endoscopically impassable tumour stenosesC Ell, J Hochberger, G Lux, et al.Zentralblatt Fur Allgemeine Pathologie U. Pathologische Anatomie|January 1, 1988
Etiology of biliary cirrhosis: diagnostic features and a new classificationJ LudwigThe American Journal of Surgical Pathology|January 1, 1989
Surgical pathology of the syndrome of primary sclerosing cholangitisJ LudwigHuman Pathology|May 1, 1977
A review of lobular, portal, and periportal hepatitis. Interpretation of biopsy specimens without clinical dataJ LudwigBailliere'S Best Practice & Research. Clinical Gastroenterology|September 8, 2000
The pathology of primary biliary cirrhosis and autoimmune cholangitisJ LudwigDigestive Diseases and Sciences|October 1, 1979
Drug effects on the liver: a tabular compilation of drugs and drug-related hepatic diseasesJ LudwigPageof 129