1. Department of Academic Affairs, The Third Affiliated Hospital of Qiqihar Medical College, Qiqihar 161000, China
2. Department of Vascular Surgery, The Third Affiliated Hospital of Qiqihar Medical College, Qiqihar 161000, China
3. Department of Ultrasound, The Third Affiliated Hospital of Qiqihar Medical College, Qiqihar 161000, Chin