RT Journal Article SR Electronic T1 Intraoral ‘leukoplakia’ JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 127 OP 134 VO 34 IS 2 A1 Hartwell, Shattuck W. YR 1967 UL http://www.ccjm.org/content/34/2/127.abstract AB