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Contributors SJF wrote the first draft of the manuscript based on discussions between all authors. PMO’B, RB and DS reviewed and revised this draft. All authors approved the final submitted manuscript.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests In the last three years: SJF reports personal fees from AstraZeneca, Boehringer Ingelheim, GlaxoSmithKline, and Novartis, and investigator-initiated research funding from Boehringer Ingelheim; PMO’B has held grants-in-aid from AstraZeneca, Medimmune, Novartis, and received consulting fees from AstraZeneca, GSK, and Boehringer; RB reports personal fees from AstraZeneca, Boehringer Ingelheim, Chiesi, Cipla, Novartis, Roche, and Teva, grants to Mainz University from Boehringer Ingelheim, GlaxoSmithKline, Novartis, and Roche, he is chair of the German asthma guideline committee since 2006 and a member of the science committee of the Global Initiative for Asthma (GINA) since 2016; DS reports personal fees from AstraZeneca, Boehringer Ingelheim , Novartis and Teva, and grants from GlaxoSmithKline.
Patient consent Not required.
Provenance and peer review Not commissioned; externally peer reviewed.
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