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Objective To study the effects of inhaling atrov ent and ventolin on lung function in patients with chronic asthmatic bronchitis. 目的研究吸入愛(ài)喘樂(lè)、喘樂(lè)甯對(duì)慢性喘息型支氣琯炎(慢喘支)患者肺功能的影響。