Affiliation: | 1. Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China;2. Department of Medical Genetics of Nanjing University Medical School, Nanjing, China;3. Berry Genomics, Beijing, China Correspondence to: Yali Hu. E-mail: glyyhuyali@163.com;4. David S Cram. E-mail: david.cram@berrygenomics.com;5. Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, Nanjing, China Correspondence to: Yali Hu. E-mail: glyyhuyali@163.com |