1. Division of Cardiology, Department of Medicine; University of California; San Diego California
2. Department of Cardiovascular Diseases; Henan Provincial People's Hospital, Zhengzhou University; Henan China
3. Department of Cardiovascular Diseases; Mayo Clinics; Rochester Minnesota
4. Department of Surgery, Division of Cardiothoracic Surgery; University of California; San Diego California
5. Department of Health Science Research; Mayo Clinics; Rochester Minnesota