RT Journal Article SR Electronic T1 Practising sound medicine in the absence of evidence JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 767 OP 767 DO 10.1503/cmaj.1031733 VO 170 IS 5 A1 Kouyoumdjian, Fiona A1 Cardy, Vanessa L. YR 2004 UL http://www.cmaj.ca/content/170/5/767.1.abstract