RT Journal Article SR Electronic T1 Blood testing for sensitivity, allergy or intolerance to food JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 666 OP 668 DO 10.1503/cmaj.110026 VO 184 IS 6 A1 Elana Lavine YR 2012 UL http://www.cmaj.ca/content/184/6/666.abstract