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Flow diagram of patients eligible for propensity matching.
Abbreviations: COPD, chronic obstructive pulmonary disease; ef-FDC-BDP, extrafine particle fixed dose beclometasone; fp-FDC-F, fine-particle fixed dose fluticasone; fp-FDC-FF, fine-particle fixed dose fluticasone furoate; fp-FDC-FP, fine-particle fixed dose fluticasone propionate.
