RT Journal Article SR Electronic T1 The modern scientific physician: 5. The useful property of an intervention JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1059 OP 1060 VO 165 IS 8 A1 Miettinen, Olli S. YR 2001 UL http://www.cmaj.ca/content/165/8/1059.abstract AB