1. Department of Hepatobiliary Surgery, Affiliated Nanhua Hospital, Hengyang Medical College, University of South China, Zhuhui, Hengyang, Hunan 421002, P.R. China
2. Radiotherapy Center, Department of Oncology, Affiliated Nanhua Hospital, Hengyang Medical College, University of South China, Zhuhui, Hengyang, Hunan 421002, P.R. China
3. Department of Ultrasound Medicine, Hengyang Central Hospital, Zhuhui, Hengyang, Hunan 421002, P.R. China
4. Department of Pain Rehabilitation, Affiliated Nanhua Hospital, Hengyang Medical College, University of South China, Zhuhui, Hengyang, Hunan 421002, P.R. China
5. Department of Hand and Microsurgery, Affiliated Nanhua Hospital, Hengyang Medical College, University of South China, Zhuhui, Hengyang, Hunan 421002, P.R. China