Changmin Niu, Doctor, Lecturer, Master's supervisor, School of nursing, School of public health, Yangzhou University, member of Department of maternal and child nursing,  member of China eugenics Association, Research Fields:Reproductive medicine, participated in the projects of National Natural Science Foundation of China,NSFC (31371174) (82071696) (81871205), preside in graduate scientific research practice innovation project of Jiangsu Province (kycx17-1893) , NSFC (Youth Fund) (82101674), Natural Science Foundation of Jiangsu Province (Youth Fund) (bk20210815); Basic science foundation for colleges and universities of Jiangsu Province (21kjb310022).