Center for Reproductive Medicine Department of Obstetrics and Gynecology Peking University Third Hospital Beijing 100191 ChinaNational Clinical Research Center for Obstetrics and Gynecology Beijing 100191 ChinaKey Laboratory of Assisted Reproduction(Peking University) Ministry of Education Beijing 100191 ChinaBeijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology Beijing 100191 China;
Beijing CapitalBio Medical Laboratory Beijing 101111 China;
Department of Obstetrics and Gynecology Peking University Third Hospital Beijing 100191 China;
National Engineering Research Center for Beijing Biochip Technology Beijing 102206 ChinaDepartment of Biomedical Engineering Tsinghua University School of Medicine Beijing 100084 China;
Robinson Institute School of Paediatrics and Reproductive Health University of Adelaide SA Australia;
Center for Reproductive Medicine Department of Obstetrics and Gynecology Peking University Third Hospital Beijing 100191 ChinaNational Clinical Research Center for Obstetrics and Gynecology Beijing 100191 ChinaKey Laboratory of Assisted Reproduction(Peking University) Ministry of Education Beijing 100191 ChinaBeijing Key Laboratory of Reproductive Endocrinology and Assisted Reproductive Technology Beijing 100191 ChinaBeijing Advanced Innovation Center for Genomic Beijing 100871 ChinaPeking-Tsinghua Center for Life Sciences Peking University Beijing 100871 China;
NIPT; risk for trisomy; NIPT policy in China; prenatal diagnosis; maternal age;