title: Letter: Alpha-adrenoceptor-blocking drugs in asthma.
mesh_terms: D000319:Adrenergic beta-Antagonists / Q000627:therapeutic use*; D000420:Albuterol / Q000627:therapeutic use; D001249:Asthma / Q000188:drug therapy*; D004357:Drug Synergism; D006801:Humans; D011941:Receptors, Adrenergic
chemical_list: D000319:Adrenergic beta-Antagonists; D011941:Receptors, Adrenergic; D000420:Albuterol