Letter: Death in asthma.
D000208:Acute Disease; D000335:Aerosol Propellants; D001249:Asthma / Q000188:drug therapy / Q000401:mortality*; D006801:Humans; D007545:Isoproterenol / Q000009:adverse effects / Q000627:therapeutic use*
D000335:Aerosol Propellants; D007545:Isoproterenol