1. Liaoning Centre for Prenatal Diagnosis, Key Laboratory of Maternal‑Fetal Medicine of Liaoning Province, Shengjing Hospital Affiliated to China Medical University, Shenyang, Liaoning 110004, P.R. China
2. Clinical Laboratory, The People's Hospital of China Medical University, Shenyang, Liaoning 110016, P.R. China
3. Basecare Medical Device Co., Ltd., Suzhou, Jiangsu 215000, P.R. China
4. Genetics Unit, Shenyang Maternity and Infant's Hospital, Shenyang, Liaoning 110004, P.R. China
5. The Outpatient Department of Obstetrics, Shenyang Maternity and Infant's Hospital, Shenyang, Liaoning 110004, P.R. China
6. Department of Pediatrics, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110016, P.R. China
7. State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic and Developmental Sciences, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, P.R. China