Efficacy and safety of 4 weeks' treatment with combined fluticasone furoate/vilanterol in a single inhaler given once daily in COPD: a placebo-controlled randomised trial

por Lötvall, J, Bakke, P S, Bjermer, L, Steinshamn, S, Scott-Wilson, C, Crim, C, Sanford, L, Haumann, B
Publicado 2012