[When cowboys are short of air. Alarm signs overlooked].
D000318:Adrenergic beta-Agonists / Q000008:administration & dosage; D018680:Cholinergic Antagonists / Q000008:administration & dosage; D004417:Dyspnea / Q000188:drug therapy / Q000209:etiology*; D006801:Humans; D029424:Pulmonary Disease, Chronic Obstructive / Q000188:drug therapy / Q000209:etiology*; D012907:Smoking / Q000009:adverse effects*; D016540:Smoking Cessation; D013806:Theophylline / Q000008:administration & dosage
D000318:Adrenergic beta-Agonists; D018680:Cholinergic Antagonists; D013806:Theophylline