Misuse of helium.
Haynes
S R
SR
D000368:Aged; D000402:Airway Obstruction / Q000628:therapy*; D005260:Female; D006371:Helium / Q000009:adverse effects*; D006801:Humans; D010100:Oxygen / Q000097:blood; D010102:Oxygen Inhalation Therapy
D006371:Helium; D010100:Oxygen