1. Department of Ultrasound Medicine; Second Affiliated Hospital of Harbin Medical University; Harbin China
2. Departments of Ultrasound Medicine; Jinshan Branch of Shanghai Sixth People's Hospital affiliated with Shanghai Jiaotong University; Shanghai China
3. Departments of Laboratory Medicine; Jinshan Branch of Shanghai Sixth People's Hospital affiliated with Shanghai Jiaotong University; Shanghai China
4. Department of Ultrasound; Affiliated Hospital of Qingdao University, Medical College; Qingdao China