1. Department of Anesthesiology, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550001, P.R. China
2. Department of Anesthesiology, The First Affiliated Hospital of Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou 550001, P.R. China
3. Department of Orthopedic and Sports Medicine, Ningbo First Hospital, Ningbo, Zhejiang 315000, P.R. China