RT Journal Article SR Electronic T1 Why didn’t it work? JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 175 OP 175-a DO 10.1503/cmaj.110-2020 VO 182 IS 2 A1 Ivers, Noah M. YR 2010 UL http://www.cmaj.ca/content/182/2/175.2.abstract