RT Journal Article SR Electronic T1 Canadian drug shortage: recent history of a mystery JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1000 OP 1000 DO 10.1503/cmaj.120527 VO 184 IS 8 A1 Duffin, Jacalyn YR 2012 UL http://www.cmaj.ca/content/184/8/1000.abstract