1. Heart Failure Clinic and Second Cardiology Department; Attikon University Hospital, University of Athens; Athens Greece
2. Department of Anesthesiology and Critical Care Medicine, Hospital Lariboisière, APHP; Université Paris Diderot Paris 7; U942 Inserm Paris France
3. Heart Failure and Transplant Unit, Cardiology Department; Hospital Doce de Octubre; Madrid Spain
4. Cardiology Division and Heart Failure and Transplantation Program; Hospital Espanhol; Salvador Bahia Brazil
5. Department of Intensive Care Medicine, Nepean Hospital; University of Sydney; Penrith New South Wales Australia
6. Department of Internal Medicine; University Hospital Zurich; Zurich Switzerland