About the Authors

Paul Walters

p.walters@iop.kcl.ac.uk

Affiliation Health Service and Population Research Department, Institute of Psychiatry, King's College London, London, United Kingdom

Peter Schofield

Affiliation Division of Health and Social Care Research, Department of Primary Care and Public Health Sciences, King's College London, London, United Kingdom

Louise Howard

Affiliation Health Service and Population Research Department, Institute of Psychiatry, King's College London, London, United Kingdom

Mark Ashworth

Affiliation Division of Health and Social Care Research, Department of Primary Care and Public Health Sciences, King's College London, London, United Kingdom

André Tylee

Affiliation Health Service and Population Research Department, Institute of Psychiatry, King's College London, London, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: PW PS MA LH AT. Analyzed the data: PS PW. Contributed reagents/materials/analysis tools: PW PS MA LH AT. Wrote the paper: PW PS MA LH AT.