1. Julius L. Chambers Biomedical/Biotechnology Research Institute and Department of Biological and Biomedical Sciences, North Carolina Central University, Kannapolis, North Carolina, USA
2. Basic Medical College of Zhengzhou University, Zhengzhou, Henan, P.R. China
3. Department of Pathology, School of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
4. College of Medicine, Henan University of Sciences and Technology, Luoyang, Henan, P.R. China