About the Authors

Cristín Ryan

Affiliation School of Pharmacy, Queen's University Belfast, Belfast, United Kindgom

Sarah Ross

Affiliation School of Medicine and Dentistry, University of Aberdeen, Aberdeen, United Kingdom

Peter Davey

Affiliation School of Medicine, University of Dundee, Dundee, United Kingdom

Eilidh M. Duncan

Affiliation Health Services Research Unit, University of Aberdeen, Aberdeen, United Kingdom

Jill J. Francis

Affiliation Health Services Research and Management Division, City University London, London, United Kingdom

Shona Fielding

Affiliation Medical Statistics Team, University of Aberdeen, Aberdeen, United Kingdom

Marie Johnston

Affiliation Health Psychology, University of Aberdeen, Aberdeen, United Kingdom

Jean Ker

Affiliation School of Medicine, University of Dundee, Dundee, United Kingdom

Amanda Jane Lee

Affiliation Medical Statistics Team, University of Aberdeen, Aberdeen, United Kingdom

Mary Joan MacLeod

Affiliation School of Medicine and Dentistry, University of Aberdeen, Aberdeen, United Kingdom

Simon Maxwell

Affiliation Clinical Pharmacology Unit, University of Edinburgh, Edinburgh, United Kindgom

Gerard A. McKay

Affiliation Department of Clinical Pharmacology, Glasgow Royal Infirmary, Glasgow, United Kindgom

James S. McLay

Affiliation School of Medicine and Dentistry, University of Aberdeen, Aberdeen, United Kingdom

David J. Webb

Affiliation Clinical Pharmacology Unit, University of Edinburgh, Royal Infirmary of Edinburgh, Edinburgh, United Kindgom

Christine Bond

c.m.bond@abdn.ac.uk

Affiliation Centre of Academic Primary Care, University of Aberdeen, Aberdeen, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CR SR PD ED JJF MJ JK AJL MJM SM GAM JSM DJW CB. Performed the experiments: CR SR PD JK SM GAM JSM DJW CB. Analyzed the data: CR SR PD ED JJF SF MJ JK AJL MJM SM GAM JSM DJW CB. Contributed reagents/materials/analysis tools: CR SR PD ED JJF SF MJ JK AJL MJM SM GAM JSM DJW CB. Wrote the paper: CR SR PD ED JJF SF MJ JK AJL MJM SM GAM JSM DJW CB.