RT Journal Article SR Electronic T1 Blue rubber bleb nevus syndrome JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E841 OP E841 DO 10.1503/cmaj.190173 VO 191 IS 30 A1 Julia N. Mayba A1 Kyle Cullingham YR 2019 UL http://www.cmaj.ca/content/191/30/E841.abstract