Asthma death rate increases in spite of better drugs.
D000280:Administration, Inhalation; D000893:Anti-Inflammatory Agents / Q000008:administration & dosage; D001249:Asthma / Q000188:drug therapy / Q000401:mortality*; D004205:Cromolyn Sodium / Q000627:therapeutic use; D006801:Humans; D013256:Steroids; D014481:United States
D000893:Anti-Inflammatory Agents; D013256:Steroids; D004205:Cromolyn Sodium