1 Division of Cardiovascular Medicine, Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, OX1 2JD, UK.
2 Cardio-Oncology Service, Royal Brompton & Harefield NHS Foundation Trust and the National Heart & Lung Institute, Imperial College London, London SW3 6NP, UK.
3 Cardiology Department, La Paz University Hospital, IdiPAZ Research Institute, Madrid 28046, Spain.