1. Department of Blood Transfusion, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P. R. China
2. Department of Orthopedics, Changsha Hospital of Traditional Chinese Medicine, Changsha Eighth Hospital, Changsha, Hunan 410013, P. R. China
3. Guangzhou Customs District Technology Center, Guangzhou 510700, China