1. University of Electronic Science and Technology of China, Faculty of Medicine; Chengdu Women’s and Children’s Central Hospital, Clinic of Ultrasonic, Chengdu, China

2. University of Electronic Science and Technology of China, Faculty of Medicine; Chengdu Women’s and Children’s Central Hospital, Clinic of Pediatric Surgical, Chengdu, China

3. University of Electronic Science and Technology of China, Faculty of Medicine; Chengdu Women’s and Children’s Central Hospital, Clinic of Internal Medicine-cardiovascular, Chengdu, China

4. University of Electronic Science and Technology of China, Faculty of Medicine; Chengdu Women’s and Children’s Central Hospital, Clinic of Radiology, Chengdu, China