1. Département de Cardiologie; Centre Hospitalier Universitaire Pontchaillou; 2, rue Henri Le Guilloux 35033 Rennes cedex 09 France
2. The University of Birmingham; Edgbaston UK
3. Bakken Research Center; Maastricht The Netherlands
4. Aarhus University Hospital; Aarhus Denmark
5. Gentofte University Hospital; Hellerup Denmark
6. University of Hull; Kingston-upon-Hull UK
7. GVM Hospitals of Care and Research; Cotignola Italy