1Clinical Research Fellow, Centre of Academic Primary Care, University of Aberdeen, Scotland, UK
2Senior Clinical Research Fellow, Allergy & Respiratory Research Group, Centre for Population Health Sciences: GP Section, University of Edinburgh, Scotland, UK
3Professor of Medical Statistics, Department of General Practice and Primary Care, University of Aberdeen
4Professor of Electrical Engineering, Department of Engineering Science, University of Oxford, UK
5Senior Lecturer, E-Health Research Group, Centre for Population Health Sciences: GP Section, University of Edinburgh
6Professor of Primary Care Research & Development, Allergy & Respiratory Research Group, Centre for Population Health Sciences: GP Section, University of Edinburgh
7General Practice Airways Group Professor of Primary Care Respiratory Medicine, Centre of Academic Primary Care, University of Aberdeen
*Centre of Academic Primary Care, The University of Aberdeen, Foresterhill Health Centre, Westburn Road, Aberdeen AB25 2AY. Tel: +44 (0)1224 553972 Fax: +44 (0)1224 550683 E-mail: dermotryan@doctors.org.uk