TY - JOUR T1 - Contamination of multiple-dose vials due to repeat use of syringes JF - Canadian Medical Association Journal JO - CMAJ SP - 529 LP - 531 VL - 140 IS - 5 A2 - , Y1 - 1989/03/01 UR - http://www.cmaj.ca/content/140/5/529.abstract ER -