About the Authors

Melanie Calvert

M.Calvert@bham.ac.uk

Affiliations Primary Care and Clinical Sciences, University of Birmingham, Birmingham, United Kingdom, MRC Midland Hub for Trials Methodology Research, Birmingham, United Kingdom

Derek Kyte

Affiliations Primary Care and Clinical Sciences, University of Birmingham, Birmingham, United Kingdom, School of Sport, Exercise & Rehabilitation, University of Birmingham, Birmingham, United Kingdom

Helen Duffy

Affiliation Primary Care and Clinical Sciences, University of Birmingham, Birmingham, United Kingdom

Adrian Gheorghe

Affiliation Department of Global Health and Development, London School of Hygiene & Tropical Medicine, London, United Kingdom

Rebecca Mercieca-Bebber

Affiliation Psycho-oncology Co-operative Research Group, University of Sydney, Sydney, Australia

Jonathan Ives

Affiliation Medicine. Ethics, Society and History, University of Birmingham, Birmingham, United Kingdom

Heather Draper

Affiliations MRC Midland Hub for Trials Methodology Research, Birmingham, United Kingdom, Medicine. Ethics, Society and History, University of Birmingham, Birmingham, United Kingdom

Michael Brundage

Affiliation Queens University, Kingston, Ontario, Canada

Jane Blazeby

Affiliation MRC ConDuCT II Hub for Trials Methodology Research, School of Social & Community Medicine, University of Bristol, Bristol, United Kingdom

Madeleine King

Affiliation Psycho-oncology Co-operative Research Group, University of Sydney, Sydney, Australia

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MC DK H. Duffy AG RM-B JI H. Draper MB JB MK. Performed the experiments: AG H. Duffy MC DK RM-B. Analyzed the data: MC DK RM-B MB JB MK. Contributed to the writing of the manuscript: MC DK H. Duffy AG RM-B JI H. Draper MB JB MK. Obtained funding: MC DK H. Draper JI AG RM-B MB MK JB. Searched the literature and screened titles, abstracts and full text articles with input from a third reviewer (MC/DK) where necessary: AG H. Duffy. Searched the grey literature: H. Duffy RM-B. Extracted data from included publications: MC DK. Formed an expert advisory panel that identified additional grey literature relevant to the research question: MB JB MK RM-B. Wrote the first draft of the manuscript: MC. Critically revised the manuscript and approved the final version for publication: MC DK H. Duffy AG RM-B. JL H. Draper MB JB MK.