Mahmoud RA, Boshra MS, Saeed H, Abdelrahim MEA, et al. The impact of the Clip-Tone training device and its smartphone application to pressurized metered-dose inhaler in adult asthmatics. J Asthma 2022 Feb 16:1-13. doi: 10.1080/02770903.2022.2043359.
PMID: 35171742