Emeryk , Andrzej, Justyna Emeryk-Maksymiuk, Kamil Janeczek, and Karolina Grzywna. 2021. “Dry Powder Inhalers in the Time of the COVID-19 Pandemic ? What Is Important for the Patient?”. Alergoprofil 17 (2), 3-9. https://doi.org/10.24292/01.AP.172210421.