title: Preventing contamination of asthma spacer devices.
mesh_terms: D001249:Asthma / Q000188:drug therapy*; D002648:Child; D004203:Disinfection / Q000379:methods; D004866:Equipment Contamination / Q000517:prevention & control*; D006801:Humans; D036503:Inhalation Spacers / Q000382:microbiology*