RT Journal Article SR Electronic T1 Regional portal hypertension JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 1 OP 5 VO 46 IS 1 A1 Raul Aron A1 Alejandro Zapolanski A1 Avram M. Cooperman A1 Robert E. Hermann YR 1979 UL http://www.ccjm.org/content/46/1/1.abstract AB