RT Journal Article SR Electronic T1 Rare diseases reconsidered JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E315 OP E316 DO 10.1503/cmaj.109-4456 VO 185 IS 8 A1 Lougheed, Tim YR 2013 UL http://www.cmaj.ca/content/185/8/E315.abstract AB