Combined Ligation and Sclerotherapy Versus Ligation Alone for Eradication of Bleeding Esophageal Varices: A Randomized and Prospective Trial - Djurdjevic, D.; Janosevic, S.; Dapcevic, B.; Vukcevic, V.; Djordjevic, D.; Svorcan, P.; Grgov, S. (Endoscopy, 1999)