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2. Limitations in the interpretation of endoscopic pancreatography findings in chronic pancreatitis;Cavallini,1985
3. Progress report: ERCP;Cotton;Gut,1977
4. Failure of endoscopic ultrasound to differentiate malignant from benign lymph nodes in esophagogastric cancer;Dittler;Gastrointest Endosc,1992
5. Diagnostic tests for pancreatic cancer;Forsmark;Gastrointest Endosc,1993