1. Keele Cardiovascular Research Group, Keele University, UK
2. Department of Cardiology, Royal Stoke University Hospital, UK
3. College of Medicine Phoenix, University of Arizona, USA
4. Department of Medicine/Cardiology, The Johns Hopkins Ciccarone Center for the Prevention of Heart Disease, USA
5. Research Institute for Primary Care and Health Sciences, Keele University, UK
6. Norwich Medical School, University of East Anglia, UK