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Article History

Received: 17 April 2019

Accepted: 2 October 2019

First Online: 27 October 2019

Ethics approval and consent to participate

: Ethics approval was granted by the London-Stanmore Research Ethics Committee (Reference CitationRef removed/LO/0919). Written, informed consent to participate was obtained from participants.

: Not applicable.

: MU was Chair of the NICE accreditation advisory committee until March 2017 for which he received a fee. He is chief investigator or co-investigator on multiple previous and current research grants from the UK National Institute for Health Research, Versus Arthritis and is a co-investigator on grants funded by the Australian NHMRC. He is an NIHR Senior Investigator. He has received travel expenses for speaking at conferences from the professional organisations hosting the conferences. He is a co-investigator on a study receiving support in kind from Orthospace Ltd. He has accepted an honorarium from CARTA. He is an editor of the NIHR journal series, and a member of the NIHR Journal Editors Group, for which he receives a fee. He has published multiple papers on chronic pain some of which are referenced in this paper.RF and MU are directors and shareholders of Clinvivo Ltd. that provides electronic data collection for health services research. RF and MU are part of an academic partnership with Serco Ltd. related to return to work initiatives.