1. Physical Examination Department, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar 161000, China
2. Cardiothoracic Surgery Ward 2, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar 161000, China
3. Central Laboratory, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar 161000, China
4. Qiqihar Medical University, Qiqihar 161006, China
5. General Surgery Ward 2, The Third Affiliated Hospital of Qiqihar Medical University, Qiqihar 161000, China