1. Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen 518060, China
2. Department of Stomatology, Shenzhen Second People's Hospital, Shenzhen 518035, China
3. Weihai Marine Organism & Medical Technology Research Institute, Harbin Institute of Technology, Weihai 264209, China