Asthma deaths.
D000319:Adrenergic beta-Antagonists / Q000009:adverse effects; D001249:Asthma / Q000401:mortality*; D006801:Humans; D009520:New Zealand; D013806:Theophylline / Q000009:adverse effects
D000319:Adrenergic beta-Antagonists; D013806:Theophylline