RT Journal Article SR Electronic T1 It's elementary medicine, my dear Watson JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1551 OP 1552 DO 10.1503/cmaj.070972 VO 177 IS 12 A1 Marshall Godwin, MD MSC YR 2007 UL http://www.cmaj.ca/content/177/12/1551.2.abstract