1. Dongguan Maternal and Child Health Care Hospital; Dongguan People's Republic of China
2. Dongguan Institute of Reproductive and Genetic Research; Dongguan People's Republic of China
3. Molecular Neurogenetics Unit, Center for Genomic Medicine; Massachusetts General Hospital; Boston Massachusetts
4. Fengcheng No.1 High School; Liaoning People's Republic of China
5. Genetic and Metabolic Central Laboratory; Birth Defect Prevention Research Institute, Maternal and Child Health Hospital of Guangxi Zhuang Autonomous Region; Nanning People's Republic of China
6. Division of Genetics and Genomics, Boston Children's Hospital, Department of Neurology; Harvard Medical School; Boston Massachusetts