TY - JOUR AU - Spiegel, B M; Esrailian, E; Eisen, G TI - The budget impact of endoscopic screening for esophageal varices in cirrhosis JO - Gastrointest Endosc VL - 66 PY - 2007 DO - 10.1016/j.gie.2007.02.048 SP - 679 EP - 692 ER -