title: [Combination therapy with inhaled bronchodilators in chronic obstructive pulmonary disease].
authors.forename: Ning
authors.initials: N
authors.lastname: Shen
authors.forename: Bai-Qiang
authors.initials: BQ
authors.lastname: Cai
authors.forename: Wan-Zhen
authors.initials: WZ
authors.lastname: Yao
mesh_terms: D000280:Administration, Inhalation; D001993:Bronchodilator Agents / Q000627:therapeutic use*; D004359:Drug Therapy, Combination; D006801:Humans; D009330:Nebulizers and Vaporizers; D029424:Pulmonary Disease, Chronic Obstructive / Q000188:drug therapy*
chemical_list: D001993:Bronchodilator Agents