1. Department of Ultrasound; The Fourth Affiliated Hospital of Nantong University (The First People's Hospital of Yancheng); Yancheng; Jiangsu Province; People's Republic of China
2. Department of Ultrasound; Shanghai Jiaotong University Affiliated First People's Hospital; Shanghai; People's Republic of China
3. Experimental Research Center; Shanghai Jiaotong University Affiliated First People's Hospital; Shanghai; People's Republic of China
4. Experimental Research Laboratory of Ophthalmology; Shanghai Jiaotong University Affiliated First People's Hospital; Shanghai; People's Republic of China