1. Department of Ultrasound, The Fourth Hospital of Shijiazhuang, Shijiazhuang, China
2. Department of Nutrition, The Fourth Hospital of Shijiazhuang, Shijiazhuang, China
3. Department of Ultrasound, The Maternal and Child Health Hospital of Ningjin County, Xingtai, China
4. Department of Pediatric and Adult Congenital Cardiology, Geisinger Heart and Vascular Institute, Geisinger Clinic, Danville, PA, USA