1. Department of Cardiovascular Diseases, Mayo Clinic, 200 First Street SW, Rochester, MN, USA
2. Department of Cardiology, Miyazaki Medical Association Hospital, Funado, Shinbeppu-chou, Miyazaki city, Miyazaki, Japan
3. Department of Health Sciences Research, Mayo Clinic, 200 First Street SW, Rochester, MN, USA
4. Department of Cardiovascular Diseases, Tel Aviv Medical Center, 6 Weizmann Street, Tel Aviv, Israel