RT Journal Article SR Electronic T1 Subungual Melanoma in Negroes JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 95 OP 97 VO 1 IS 3 A1 James A. Dickson A1 T. F. Jarman YR 1932 UL http://www.ccjm.org/content/1/3/95.abstract AB