Kassa, E Preliminary experience with endoscopic retrograde cholangiopancreatography in Ethiopia. [electronic resource] - Ethiopian medical journal Apr 1999 - 85-95 p. digital Publication Type: Evaluation Study; Journal Article ISSN: 0014-1755 Subjects--Topical Terms: AdultAgedBiliary Tract Diseases--diagnostic imagingCholangiopancreatography, Endoscopic Retrograde--adverse effectsDiagnosis, DifferentialEthiopiaFemaleHumansMaleMiddle AgedPancreatic Diseases--diagnostic imagingRisk FactorsSensitivity and Specificity