1. Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi Zhuang Autonomous Region, China
2. Department of Medical Ultrasound, Guangxi International Zhuang Medical Hospital, Nanning, Guangxi Zhuang Autonomous Region, China
3. Department of Medical Ultrasound, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi Zhuang Autonomous Region, China
4. Department of Andrology, The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, Guangxi Zhuang Autonomous Region, China
5. Guangxi University of Chinese Medicine, Nanning, Guangxi Zhuang Autonomous Region, China