7Serra HA, Klapouszko FP, DeSalvo MC, et al. Non-inferiority trial between two dry-powder inhalers containing flutieasone/salmeterol in asthmatie patients[ J]. Drug Research ,2013,63 (6) :305-310.
8Woodcock A, Bleecker ER, Letvall J, et aL Efficacy and safety of fluticasone furoate/vilanterol compared with fluticasone propionate/ salmeterol combination in adult and adolescent patients with persistent asthma: A randomized trial [ J ]. Chest: The Journal of Circulation, Respiration and Related Systems ,2013,144 (4) : 1222-1229.
9Vogelmeier C, Hederer B, Glaab T, et al. Tiotropiuna versus salmeterol for the prevention of exacerbations of COPD [ J ]. New England Jour- nal of Medicine,2011,364 (12) : 1093-1103.
