RT Journal Article SR Electronic T1 The Koebner phenomenon: psoriasis in tattoos JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP cmaj.111299 DO 10.1503/cmaj.111299 A1 Arias-Santiago, Salvador A1 Espineira-Carmona, Maria José A1 Aneiros-Fernández, José YR 2012 UL http://www.cmaj.ca/content/early/2012/09/24/cmaj.111299.abstract AB