RT Journal Article SR Electronic T1 Canadian prescription drug costs surpass $18 billion JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1323 OP 1324 DO 10.1503/cmaj.050444 VO 172 IS 10 A1 Steve Morgan YR 2005 UL http://www.cmaj.ca/content/172/10/1323.abstract