Administering parenteral drugs.
D000367:Age Factors; D000368:Aged; D001823:Body Composition; D002648:Child; D006801:Humans; D007223:Infant; D007263:Infusions, Parenteral; D007267:Injections; D007273:Injections, Intramuscular; D007275:Injections, Intravenous; D004364:Pharmaceutical Preparations / Q000008:administration & dosage*
D004364:Pharmaceutical Preparations