TY - JOUR T1 - US adopts bar codes for drug products JF - Canadian Medical Association Journal JO - CMAJ SP - 1657 LP - 1657 DO - 10.1503/cmaj.1040617 VL - 170 IS - 11 AU - Milan Korcok Y1 - 2004/05/25 UR - http://www.cmaj.ca/content/170/11/1657.abstract ER -