1. Department of Special Medicine, School of Basic Medicine, Qingdao University, Qingdao, China
2. Department of Anthropotomy and Histo-Embryology, School of Basic Medicine, Qingdao University, Qingdao, China
3. Qingdao Haier Biotech Co. Ltd., Qingdao, China
4. College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China