Kerwin, E.M., Boucot, I.H., Vogelmeier, C.F., Maltais, Naya, I.P., Tombs, L., Jones, P.W., Lipson, D.A., Keeley, T., Bjermer, L., 2020. Supplementary_data – Supplemental material for Early and sustained symptom improvement with umeclidinium/vilanterol versus monotherapy in COPD: a post hoc analysis of the EMAX randomised controlled trial.. https://doi.org/10.25384/sage.12388370