1. Department of Cardiovascular Diseases; Amiens University Hospital; 80054 Amiens Cedex 1 France
2. Western Infirmary, Cardiology Department; Glasgow UK
3. Department of Medicine; University of Otago; Christchurch New Zealand
4. Unitec; Auckland New Zealand
5. Department of Medicine; The University of Auckland; Auckland New Zealand
6. University of Milan, San Paolo Hospital, Cardiopulmonary Laboratory; Milan Italy
7. J.F. Cabral Cardiology Institute; Corrientes Argentina
8. AP-HP- Hospital Pitié-Salpetrière, Department of Cardiology; Paris France