title: The bronchial tree and the beta-adrenergic system.
mesh_terms: D001249:Asthma / Q000209:etiology / Q000503:physiopathology; D001980:Bronchi / Q000502:physiology*; D001985:Bronchial Provocation Tests; D000242:Cyclic AMP / Q000097:blood; D006801:Humans; D011941:Receptors, Adrenergic / Q000502:physiology*; D011943:Receptors, Adrenergic, beta / Q000187:drug effects / Q000502:physiology*; D013726:Terbutaline
chemical_list: D011941:Receptors, Adrenergic; D011943:Receptors, Adrenergic, beta; D000242:Cyclic AMP; D013726:Terbutaline