1Senior Clinical Research Fellow, Allergy & Respiratory Research Group, Centre for Population Health Sciences: GP Section, University of Edinburgh, Scotland, UK
2Research Fellow, Centre for Integrated HealthCare Research, Napier University
3Senior Research Fellow, Edinburgh Clinical Trials Unit, University of Edinburgh
4Professor of Respiratory and Environmental Medicine, Edinburgh Lung and the Environment Group Initiative, University of Edinburgh
5Senior Lecturer, E-Health Research Group, Centre for Population Health Sciences: GP Section, University of Edinburgh
6Senior Research Fellow, Health Economics Research Unit, University of Aberdeen
7Professor of Primary Care Research & Development, Allergy & Respiratory Research Group, Centre for Population Health Sciences: GP Section, University of Edinburgh
8Reader in Primary Care Research, Centre for Population Health Sciences: GP Section, University of Edinburgh. on behalf of the TELESCOT programme group
*Allergy and Respiratory Research Group, Centre for Population Health Sciences: GP Section University of Edinburgh, 20 West Richmond Street, Edinburgh EH8 9DX, Scotland, UK. Tel: +44 (0)131 650 8102 Fax: +44 (0)131 650 9119 E-mail: hilary.pinnock@ed.ac.uk