RT Journal Article SR Electronic T1 Open secret: Time of day matters in clinical practice JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1339 OP E1339 DO 10.1503/cmaj.73768 VO 191 IS 48 A1 Yeung, Eugene Y.H. YR 2019 UL http://www.cmaj.ca/content/191/48/E1339.abstract AB