Changing needles when drawing up vaccines and medications.
Asnes
R S
RS
D002648:Child; D004168:Diphtheria Toxoid / Q000008:administration & dosage*; D006801:Humans; D009339:Needles; D010567:Pertussis Vaccine / Q000008:administration & dosage*; D013745:Tetanus Toxoid / Q000008:administration & dosage*
D004168:Diphtheria Toxoid; D010567:Pertussis Vaccine; D013745:Tetanus Toxoid