Global burden of medication non-adherence in chronic obstructive pulmonary disease (COPD) and asthma: a narrative review of the clinical and economic case for smart inhalers

Evalyne M. Jansen, Susanne J. van de Hei, Boudewijn J. H. Dierick, Huib A. M. Kerstjens, Janwillem W. H. Kocks, Job F. M. van Boven