1. Department of Cardiology, St. Antonius Hospital, Nieuwegein, Netherlands
2. Department of Clinical Sciences, Danderyd Hospital, Division of Cardiovascular Medicine, Karolinska Institutet, Stockholm, Sweden
3. Department of Cardiology, Heart Center Balatonfüred, and Heart and Vascular Center, Semmelweis University, Budapest, Hungary
4. Hikari Dx, San Diego, United States