About the Authors

Lynne Dawkins

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Supervision, Writing – original draft, Writing – review & editing

dawkinl3@lsbu.ac.uk

Affiliation Centre for Addictive Behaviours Research, London South Bank University, London, England

Linda Bauld

Roles Conceptualization, Funding acquisition, Methodology, Supervision, Writing – review & editing

Affiliation Usher Institute and SPECTRUM Consortium, Old Medical School, University of Edinburgh, Edinburgh, Scotland

Allison Ford

Roles Conceptualization, Data curation, Funding acquisition, Investigation, Methodology, Project administration, Writing – review & editing

Affiliation Institute for Social Marketing and Health, Faculty of Health Sciences and Sport, University of Stirling, Stirling, Scotland

Deborah Robson

Roles Conceptualization, Funding acquisition, Methodology, Writing – review & editing

Affiliation National Addiction Centre and SPECTRUM Consortium, Addictions Department & ARC South London, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, England

Peter Hajek

Roles Conceptualization, Funding acquisition, Methodology, Supervision, Writing – review & editing

Affiliation Wolfson Institute of Preventive Medicine, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, England

Steve Parrott

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Methodology, Writing – review & editing

Affiliation Department of Health Sciences, University of York, York, England

Catherine Best

Roles Formal analysis, Funding acquisition, Writing – review & editing

Affiliation Institute for Social Marketing and Health, Faculty of Health Sciences and Sport, University of Stirling, Stirling, Scotland

Jinshuo Li

Roles Formal analysis, Methodology, Writing – original draft

Affiliation Department of Health Sciences, University of York, York, England

Allan Tyler

Roles Data curation, Investigation, Project administration, Writing – review & editing

Affiliation Centre for Addictive Behaviours Research, London South Bank University, London, England

Isabelle Uny

Roles Data curation, Investigation, Project administration, Writing – review & editing

Affiliation Institute for Social Marketing and Health, Faculty of Health Sciences and Sport, University of Stirling, Stirling, Scotland

Sharon Cox

Roles Conceptualization, Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Project administration, Supervision, Writing – original draft, Writing – review & editing

Current address: Department of Behavioural Science and Health, University College London, London, England

Affiliation Centre for Addictive Behaviours Research, London South Bank University, London, England

Competing Interests

PH received research funding from and provided consultancy to manufacturers of stop-smoking medications. LD has provided consultancy for the pharmaceutical industry relating to the development of smoking cessation products. This does not alter our adherence to PLOS ONE policies on sharing data and materials. SC, LB, AF, DR, SP, CB, AT, JL, IU, SP have no competing interests.