Exacerbations in COPD patients treated with Inhaled Corticosteroids/Long-acting β2 agonists combinations, switching to another combination drugs or inhaler device: A "real – world" study

Diego Sangiorgi, Valentina Perrone, Stefano Buda, Luca Degli Esposti, Udo Schumacher
2017 Cogent Medicine  
doi:10.1080/2331205x.2017.1304873 fatcat:pva6vndrq5a7fotj4l5qt2cxae