1. Department of Quality Management, Guangdong Second Provincial General Hospital, No. 466, Xingangzhong Road, Haizhu District, Guangzhou, Guangdong 510317, China
2. Department of Reproductive Center of Urology, The 906th Hospital of PLA Joint Logistics Support Force, No. 377, Zhongshandong Road, Yinzhou District, Ningbo, Zhejiang 315000, China
3. Naval Special Medical Center, Naval Medical University, No. 880, Xiangyin Road, Yangpu District, Shanghai 200433, China
4. Department of Epidemic Prevention, No. 92371 Unit Hospital of PLA, No. 21, Haida Road, Fuding 355200, Fujian, China
5. Department of Medical Education, Guangdong Second Provincial General Hospital, No. 466, Xingangzhong Road, Haizhu District, Guangzhou, Guangdong 510317, China