RT Journal Article SR Electronic T1 Skin cancer development in a birthmark JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1082 OP E1082 DO 10.1503/cmaj.190492 VO 191 IS 39 A1 Alexandra C. Finstad A1 Mark G. Kirchhof YR 2019 UL http://www.cmaj.ca/content/191/39/E1082.abstract