Text and Data Mining valid from 2020-02-14
Received: 11 October 2019
Accepted: 4 February 2020
First Online: 14 February 2020
Ethics approval and consent to participate
: This was a systematic review of previously published literature and did not require ethical approval.
: Not applicable.
: Miss Axson, Mr. Ragutheeswaran, and Dr. Sundaram have nothing to disclose. Dr. Bloom reports grants from AstraZeneca, grants from Chiesi, grants from Asthma UK, outside the submitted work. Dr. Bottle reports grants from Dr. Foster, during the conduct of the study; grants from Medtronic, outside the submitted work. Prof Cowie reports receiving research funding and speaker fees from ResMed, Boston Scientific, Medtronic, and Abbott and consultancy and speaker fees from Servier, Novartis, Vifor, LivaNova, Pfizer, Roche Diagnostics, and Amgen, outside the submitted work. Dr. Quint reports grants from MRC, grants from BLF, grants from The Health Foundation, grants and personal fees from AZ, grants and personal fees from BI, grants from Chiesi, grants and personal fees from Bayer, grants and personal fees from GSK, outside the submitted work.