1. Clinical Laboratory Center, Tumor Hospital Affiliated to Xinjiang Medical University, Urumqi, Xinjiang 830011, P.R. China
2. State Key Laboratory of Pathogenesis, Prevention and Treatment of High Incidence Diseases in Central Asia, First Affiliated Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830011, P.R. China
3. Department of Spinal Surgery, People's Hospital of Xinjiang Uygur Autonomous Region, Urumqi, Xinjiang 830011, P.R. China