RT Journal Article SR Electronic T1 Differential Diagnosis of Hypersensitivity Vasculitis JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 366 OP 367 VO 58 IS 4 A1 Mercado, Ulises YR 1991 UL http://www.ccjm.org/content/58/4/366.3.abstract AB