Article History
Received: 19 August 2019
Accepted: 8 November 2019
First Online: 27 November 2019
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: Dr. Kuo reports personal fees from Circassia and AstraZeneca, outside the submitted work. Dr. Chan has no competing interest. Dr. Lipworth reports grants and personal fees from AZ, personal fees and other from Teva, personal fees from Novartis, grants and personal fees from Sanofi, grants from Roche, personal fees from Genentech, other from GSK, during the conduct of the study; grants and personal fees from Meda, grants from Janssen, personal fees from Lupin, grants and personal fees from Boerhinger Ingelheim, personal fees and other from Circassia, personal fees from Cipla, from Sandoz, personal fees from Dr. Reddys, grants and personal fees from Chiesi, outside the submitted work; and Son is employee of AztraZeneca.