1 ASST Spedali Civili of Brescia, Department of Medical and Surgical Specialties, Radiological Sciences, and Public Health, University of Brescia, Brescia, Italy.
2 Division of Cardiology, Department of Medicine, Karolinska Institutet, and Heart and Vascular and Neuro Theme, Karolinska University Hospital, Stockholm, Sweden.
3 Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.