RT Journal Article SR Electronic T1 Portal Hypertension: What are the Risk Indicators for Bleeding? JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 241 OP 241 VO 59 IS 3 A1 Marc F. Catalano YR 1992 UL http://www.ccjm.org/content/59/3/241.3.abstract AB