About the Authors

Rob Horne

r.horne@ucl.ac.uk

Affiliation Centre for Behavioural Medicine, Department of Practice and Policy, UCL School of Pharmacy, London, United Kingdom

Sarah C. E. Chapman

Affiliation Centre for Behavioural Medicine, Department of Practice and Policy, UCL School of Pharmacy, London, United Kingdom

Rhian Parham

Affiliation Centre for Behavioural Medicine, Department of Practice and Policy, UCL School of Pharmacy, London, United Kingdom

Nick Freemantle

Affiliation Department of Primary Care and Population Health, University College London, London, United Kingdom

Alastair Forbes

Affiliation Department of Internal Medicine, University College Hospital, London, United Kingdom

Vanessa Cooper

Current address: Elton John Centre, Brighton and Sussex University Hospitals NHS Trust, Brighton, United Kingdom

Affiliation Centre for Behavioural Medicine, Department of Practice and Policy, UCL School of Pharmacy, London, United Kingdom

Competing Interests

The authors have performed consultancy for Nycomed, Takeda, B Braun, Shire, Warner Chilcott, Abbott, MSD, and the university spin out consultancy company, Spoonful of Sugar of which RH is a shareholder; RH has undertaken speaker engagements with honoraria for pharmaceutical companies, RH has received consultancy payments from pharmaceutical companies related to the use of the BMQ in industry sponsored studies. There are no other relationships or activities that could appear to have influenced the submitted work. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Analyzed the data: VC RH RP SC AF NF. Wrote the paper: RH VC RP SC. Conceived and designed the study: RH. Acquired the data: RP SC VC. Critically revised the manuscript for important intellectual content: RH SC RP NF AF VC.