1. Biomedicine Research Center and Basic Medical College, The First Affiliated Hospital of BaoTou Medical College, Inner Mongolia, People's Republic of China.
2. Department of Rheumatology and Immunology, The First Affiliated Hospital of BaoTou Medical College, Inner Mongolia, People's Republic of China.
3. Department of Neurology, Affiliated Hospital of TaiShan Medical College, Taishan, People's Republic of China.
4. Department of anatomy, University of California San Francisco, San Francisco, California.
5. Institute for Hypoxia Medicine, Capital Medical University, Beijing, People's Republic of China.