1. Department of Public Health School, Guangxi Medical University, Nanning, China
2. Department of Physics and the SAVANT Center, The University of Texas at Arlington, Arlington, TX, USA
3. College of Global Public Health, New York University, New York, NY, USA
4. Key Laboratory of High-Incidence-Tumor Prevention & Treatment (Guangxi Medical University), Ministry of Education, Nanning, P.R. China
5. Department of Animal Center, Guangxi Medical University, Nanning, China