RT Journal Article SR Electronic T1 Combined antithrombotic therapy JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 327 OP 328 DO 10.1503/cmaj.1070132 VO 178 IS 3 A1 Joseph A. Delaney, PhD A1 Lucie Opatrny, MD MSc A1 James M. Brophy, MD PhD A1 Samy Suissa, PhD YR 2008 UL http://www.cmaj.ca/content/178/3/327.4.abstract