Tabyshova, Aizhamal http://orcid.org/0000-0002-4850-7746
Sooronbaev, Talant
Akylbekov, Azamat
Mademilov, Maamed http://orcid.org/0000-0001-8528-3115
Isakova, Aida
Erkinbaeva, Aidai
Magdieva, Kamila
Chavannes, Niels H. http://orcid.org/0000-0002-8607-9199
Postma, Maarten J.
van Boven, Job F. M.
Article History
Received: 28 September 2021
Accepted: 5 April 2022
First Online: 30 May 2022
Competing interests
: J.v.B. has received grants and/or consultancy fees from AstraZeneca, Chiesi, GSK, Novartis, Teva, and Trudell Medical, all unrelated to this study, and paid to his employer (University Medical Center Groningen). M.P. and N.C. have received funding from various pharmaceutical companies that manufacture respiratory medication, all unrelated to this study, and paid to their employer. Other authors declare no conflict of interest.