1 Department of Cardiology, Translational Cardiovascular Research Group, Milton Keynes University Hospital NHS Foundation Trust, Milton Keynes, UK.
2 Department of Respiratory Medicine, Milton Keynes University Hospital NHS Foundation Trust, Milton Keynes, UK.
3 Department of Cardiology, Translational Cardiovascular Research Group, Milton Keynes University Hospital NHS Foundation Trust, Milton Keynes, UK; Division of Cardiovascular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK.
4 Department of Cardiology, Translational Cardiovascular Research Group, Milton Keynes University Hospital NHS Foundation Trust, Milton Keynes, UK; Faculty of Medicine and Health Sciences, University of Buckingham, Buckingham, UK. Electronic address: attila.kardos@cardiov.ox.ac.uk.