1. Department of Radiology, The Second Affiliated Hospital of Harbin Medical University, Harbin, China
2. Cardiovascular Department, The First Affiliated Hospital of Harbin Medical University, Harbin, China
3. College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, China
4. Department of Information Engineering, Heilongjiang Biological Science and Technology Career Academy, Harbin, China
5. Department of General Surgery, Heilongjiang Province Land Reclamation Headquarters General Hospital, Harbin, China
6. Cardiovascular Department, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China