1. Department of Cardiovascular Medicine, Mayo Clinic , 200 First Street SW, Rochester, MN 55905 , USA
2. Cardiology Department, Hospital Universitari Son Espases, Health Research Institute of the Balearic Islands (IdISBa) , Palma , Spain
3. Facultad de Medicina, Universitat de les Illes Balears (UIB) , Palma , Spain
4. Clinical Research Department, Centro Nacional de Investigaciones Cardiovasculares (CNIC) , Madrid , Spain