1. Department of Epidemiology and Health Statistics, School of Public Health, Beijing Key Laboratory of Clinical Epidemiology, Capital Medical University, Beijing 100069, China
2. The Second Affiliated Hospital of Shandong First Medical University, Tai’an 271000, China
3. Beijing Neurosurgical Institute, Beijing 100070, China
4. School of Medical and Health Sciences, Edith Cowan University, Perth 6027, Australia
5. School of Public Health, Shandong First Medical University and Academy of Medical Sciences of Shandong Province, Tai’an 271016, China