1. Department of Labour Hygiene and Sanitary Science, College of Public Health, Xinjiang Medical University, Urumqi, Xinjiang 830011, P.R. China
2. Department of Pathology, University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA
3. Department of Ophthalmology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, P. R. China
4. Texas Children's Cancer Center, Department of Pediatrics, Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas 77030, USA
5. Division of Pediatric Surgery, Texas Children's Hospital Department of Surgery, Michael E. DeBakey Department of Surgery, Dan L. Duncan Cancer Center, Baylor College of Medicine, Houston, Texas 77030, USA
6. Department of Biosciences, Weiss School of Natural Sciences, Rice University, Houston, Texas 77005, USA
7. Central Laboratory of Xinjiang Medical University, Urumqi, Xinjiang 830011, P.R. China
8. Cancer Prevention and Research Institute, The Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xinjiang 830011, P.R. China