RT Journal Article SR Electronic T1 Diagnostic accuracy in the presence of a rare outcome JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1367 OP E1367 DO 10.1503/cmaj.70492 VO 190 IS 46 A1 McArthur, Eric YR 2018 UL http://www.cmaj.ca/content/190/46/E1367.abstract