RT Journal Article SR Electronic T1 Rates of adverse events among hospital admissions and day surgeries in Ontario from 1992 to 1997 JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1585 OP 1586 VO 160 IS 11 A1 Hunter, D. A1 Bains, N. YR 1999 UL http://www.cmaj.ca/content/160/11/1585.abstract AB