Fig. 1From: Umeclidinium/vilanterol versus fluticasone propionate/salmeterol in COPD: a randomised trialFlow diagram for disposition of patients (CONSORT). Abbreviations: ITT, intent-to-treat; FP/SAL, fluticasone propionate/salmeterol; UMEC, umeclidinium; VI, vilanterol. aOne patient was randomised in error; this patient was a run-in failureBack to article page