1. Department of Cardiology The First Affiliated Hospital of Harbin Medical University Harbin Heilongjiang China
2. Department of Echocardiography The First Affiliated Hospital of Harbin Medical University Harbin Heilongjiang China
3. Department of Cardiology Fuwai Hospital of the Chinese Academy of Medical Sciences Beijing China
4. Cadre Ward, The Second Affiliated Hospital of Harbin Medical University Harbin Heilongjiang China
5. Department of Acupuncture The Second Affiliated Hospital of Heilongjiang University of Chinese Medicine Harbin Heilongjiang China