1. Key Laboratory of Chemical Biology and Molecular Engineering of Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan, Shanxi, China
2. Department of Ultrasound, Shanxi Provincial People's Hospital, Taiyuan, Shanxi, China
3. Radiation Medicine Laboratory, Institute of Radiation and Environmental Medicine, China Institute for Radiation Protection, Taiyuan, Shanxi, China
4. Department of Ultrasound, The Third Affiliated Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China