1. Department of Neurology, the Third Affiliated Hospital of Qiqihar Medical College, Qiqihar, China
2. Department of Electrical Biology, the Third Affiliated Hospital of Qiqihar Medical College, Qiqihar, China
3. Medical examination center, the Third Affiliated Hospital of Qiqihar Medical College, Qiqihar, China
4. Department of Orthopedic surgery, Qiqihar Jianhua Hospital, Qiqihar, China