1. Cancer Institute of the General Hospital, School of Public Health and Management, Ningxia Medical University, Yinchuan 750004, China
2. Department of Epidemiology and Biostatistics, College of Public Health, Shaanxi University of Chinese Medicine, Xi’an 712046, China
3. Department of Neurosurgery, Huazhong University of Science and Technology Union Shenzhen Hospital, The 6th Affiliated Hospital of Shenzhen University, Shenzhen 518052, China
4. Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen 518060, China
5. China-Australia Joint Research Center for Infectious Diseases, School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an 710061, China
6. Melbourne Sexual Health Centre, Alfred Health, Melbourne, VIC 3053, Australia
7. Central Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, VIC 3800, Australia
8. Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou 450001, China