1. Division of Cardiovascular Diseases; Mayo Clinic; Rochester Minnesota
2. Department of Cardiovascular Diseases; Henan Provincial People's Hospital; Henan China
3. Department of Cardiovascular Diseases; Changhai Hospital; Second Military Medical University; Shanghai China
4. Department of Cardiology; Southwest Hospital; Third Military Medical University; Chongqing China
5. Division of Cardiovascular Diseases; Department of Radiology; Mayo Clinic; Rochester Minnesota