RT Journal Article SR Electronic T1 Terra firma–forme dermatosis JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 285 OP 285 DO 10.1503/cmaj.150075 VO 188 IS 4 A1 Pablo Fernández-Crehuet A1 Ricardo Ruiz-Villaverde YR 2016 UL http://www.cmaj.ca/content/188/4/285.abstract