Affiliation: | 1.Key Laboratory of the Ministry of Education for Conservation and Utilization of Special Biological Resources in Western China, College of Life science, Ningxia University, Yinchuan 750021, China; E-Mails: (Y.Z.); (Y.L.);2.Institute of Stem Cell Research, General Hospital of Ningxia Medical University, Yinchuan 750004, China |