RT Journal Article SR Electronic T1 CME and the pharmaceutical industry: two worlds, three views, four steps JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 149 OP 150 DO 10.1503/cmaj.1040361 VO 171 IS 2 A1 David A. Davis YR 2004 UL http://www.cmaj.ca/content/171/2/149.abstract