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Article History

Received: 5 November 2019

Accepted: 27 January 2020

First Online: 10 February 2020

Ethics approval and consent to participate

: The study was approved by independent ethics committees at each institution. All patients provided written informed consent prior to any study-related procedure.

: Not applicable.

: DS reports personal fees from Verona during the conduct of the study. Outside the submitted work, he reports personal fees from AstraZeneca, Boehringer Ingelheim, Chiesi, Cipla, Genentech, GlaxoSmithKline, Glenmark, Menarini, Mundipharma, Novartis, Peptinnovate, Pfizer, Pulmatrix, Theravance, and Verona.FJM reports having supported the parent Verona study. Outside the submitted work, he reports personal fees and non-financial support from the American College of Chest Physicians, AstraZeneca, Boehringer Ingelheim, Canadian Respiratory Network, Chiesi, ConCert, Dartmouth, Genentech, GlaxoSmithKline, Inova Fairfax Health System, Miller Communications, National Association for Continuing Education, Novartis, Pearl Pharmaceuticals, PeerView Communications, Physicians Education Resource, Potomac, Prime Communications, Puerto Rican Respiratory Society, Sunovion, Teva, Theravance, and the University of Alabama Birmingham, non-financial support from Gilead, Nitto, ProterrixBio and Zambon, personal fees from American Thoracic Society, Columbia University, France Foundation, Integritas, MD Magazine, Methodist Hospital Brooklyn, New York University, Patara/Respivant, PlatformIQ, Rare Disease Healthcare Communications, Rockpointe, UpToDate, WebMD/MedScape and Western Connecticut Health Network, grants from the National Institutes of Health (NIH), and other from Afferent/Merck, Bayer, Biogen, Bridge Biotherapeutics, ProMedior, Prometic and Veracyte.HW reports personal fees from AstraZeneca, Bayer, BerlinChemie, Boehringer Ingelheim, GlaxoSmithKline, Novartis and Roche, all outside the submitted work.TB reports personal fees from Verona, both during the conduct of the study and outside the submitted work.BTM is an employee of Verona, the sponsor of the study.