1 Research Fellow, Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK.
2 Professor of Primary Care and Immediate Past President of the World Organisation of Family Doctors (WONCA), Norwich Medical School, University of East Anglia, Norwich, UK.
3 President, World Organisation of Family Doctors (WONCA), Hong Kong, China.
4 GP Academic Clinical Fellow, Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK [email protected].