1. Department of Clinical Laboratory, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
2. School of Material Science and Technology, Lanzhou University of Technology, Lanzhou, Gansu 730050, P.R. China
3. Department of Orthopaedics, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
4. Department of Clinical Laboratory, The First Clinical Medical College of Lanzhou University, Lanzhou, Gansu 730000, P.R. China