1. Department of Histology and Embryology, School of Basic Medical, Guizhou Medical University, Guiyang, Guizhou, China.
2. Translational Medicine Research Center, Guizhou Medical University, Guiyang, Guizhou, China.
3. National and Guizhou Joint Engineering Laboratory for Cell Engineering and Biomedicine Technique, Guizhou Province Key Laboratory of Regenerative Medicine, Guizhou Medical University, Guiyang, Guizhou, China.