RT Journal Article SR Electronic T1 Keratoacanthoma: Histopathologic Criteria for Diagnosis JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 153 OP 157 VO 21 IS 3 A1 Skirpan, Philip A1 Haserick, John R. YR 1954 UL http://www.ccjm.org/content/21/3/153.abstract AB