RT Journal Article SR Electronic T1 Chronic Ulcers of the Leg of Venous Origin JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 3 OP 9 VO 22 IS 1 A1 Robnett, A. H. YR 1955 UL http://www.ccjm.org/content/22/1/3.abstract AB