Outcomes of patients with COPD switching from multiple-inhaler to once-daily single-inhaler triple therapy in a real-world primary care setting in England: a retrospective pre-post... oleh Raj Sharma, Claus F Vogelmeier, Kieran J Rothnie, David M G Halpin, Alexandrosz Czira, Chris Compton, Afisi S Ismaila, Robert P Wood, Victoria L Banks, Lucinda J Camidge, Olivia K I Massey, Monica Seif