1. Department of Echocardiography Beijing Key Laboratory of Maternal‐Fetal Medicine in Fetal Heart Disease Beijing Anzhen Hospital Capital Medical University Beijing China
2. Department of Neurology Dongzhimen Hospital Affiliated to Beijing University of Chinese Medicine Beijing China
3. Department of Ultrasound, Maternity and Child Care Centers in Fujian Province Fuzhou China
4. Department of Pathology Beijing Anzhen Hospital Capital Medical University Beijing China
5. The Heart Center St. Christopher's Hospital for Children Drexel University College of Medicine Philadelphia Pennsylvania