RT Journal Article SR Electronic T1 How often should patients with hepatitis C be screened for esophageal varices? JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 758 OP 759 VO 73 IS 8 A1 Entwisle, Christopher A1 Younossi, Zobair M. YR 2006 UL http://www.ccjm.org/content/73/8/758.abstract AB