Corrigendum to 'Efficacy and safety of umeclidinium added to fluticasone furoate/vilanterol in chronic obstructive pulmonary disease: Results of two randomized studies' [Respir. Med. 109 (2015) 1155–1163]

Corrigendum to “Efficacy and safety of umeclidinium added to fluticasone furoate/vilanterol in chronic obstructive pulmonary disease: Results of two randomized studies” [Respir. Med. 109 (2015) 1155e1163] Thomas M. Siler a, , Edward Kerwin , Ana R. Sousa , Alison Donald , Rehan Ali , Alison Church d a Midwest Chest Consultants, PC, 330 First Capitol Drive, Suite 470, St Charles, MO, USA b Clinical Research Institute of Southern Oregon, Medford, OR, USA c GSK, Respiratory Medicines Development Centre, Stockley Park, Middlesex, UK d GSK, Respiratory and Immuno-Inflammation, Research Triangle Park, NC, USA