RT Journal Article SR Electronic T1 Keratoacanthoma associated with lichen planus JF Saudi Medical Journal JO Saudi Med J FD Prince Sultan Military Medical City SP 1135 OP 1136 VO 28 IS 7 A1 Akdeniz, Sedat A1 Harman, Mehmet A1 Buyukbayram, Huseyin YR 2007 UL http://smj.org.sa/content/28/7/1135.abstract AB