RT Journal Article SR Electronic T1 Identification and use of operating room efficiency indicators: the problem of not performing the right search within PubMed JF Canadian Journal of Surgery JO CAN J SURG FD Canadian Medical Association SP E103 OP E103 DO 10.1503/cjs.019413 VO 56 IS 5 A1 Pieter Stepaniak YR 2013 UL http://canjsurg.ca/content/56/5/E103.1.abstract