Medical gas delivery systems.
D000056:Accident Prevention; D002170:Canada; D005740:Gases / Q000600:supply & distribution*; D006739:Hospital Administration / Q000592:standards*; D006750:Hospital Distribution Systems / Q000592:standards*; D006801:Humans; D008284:Maintenance and Engineering, Hospital / Q000592:standards; D014481:United States
D005740:Gases