RT Journal Article SR Electronic T1 Avoiding harm to patients: properly calculating costs of harm JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1362 OP E1362 DO 10.1503/cmaj.73407 VO 191 IS 49 A1 Robert Robson YR 2019 UL http://www.cmaj.ca/content/191/49/E1362.abstract AB