RT Journal Article SR Electronic T1 Must we keep depriving residents of sleep? JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1087 OP 1087 DO 10.1503/cmaj.090764 VO 180 IS 11 A1 Kelsall, Diane YR 2009 UL http://www.cmaj.ca/content/180/11/1087.abstract