1. Department of Thoracic Surgery, The Affiliated Hospital of Qingdao University, Qingdao, China.
2. Future Medical Laboratory, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
3. Department of Cardiovascular Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, China.
4. The Second Clinical College of Harbin Medical University, Harbin, China.