1. Department of Medical Genetics, School of Basic Medicine, China Medical University, Shenyang, China.
2. Liaoning Centre for Prenatal Diagnosis, Department of Gynecology and Obstetrics, Shengjing Hospital, China Medical University, Shenyang, China.
3. Department of Pediatrics, The First Affiliated Hospital, China Medical University, Shenyang, China.
4. Department of Obstetrics and Gynecology, Benxi Central Hospital, Benxi, China.
5. Sino-Dutch Biomedical and Information Engineering School, Northeastern University, Shenyang, China.