1 Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, 1 Xueyuan Road, FuzhouFujian, 350108, China.
2 Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China.
3 Department of Thyroid and Breast Surgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China.
4 Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital of Fujian Medical University, 88 Jiaotong Road, Fuzhou, 350004, China.
5 Laboratory Center, School of Public Health, The Major Subject of Environment and Health of Fujian Key Universities, Fujian Medical University, Fujian, China.
6 Department of Oral and Maxillofacial Surgery, the First Affiliated Hospital of Fujian Medical University, 88 Jiaotong Road, Fuzhou, 350004, China. dr_qiuyu88@163.com.
7 Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, 1 Xueyuan Road, FuzhouFujian, 350108, China. chenfa@fjmu.edu.cn.
8 Key Laboratory of Ministry of Education for Gastrointestinal Cancer, Fujian Medical University, Fuzhou, China. chenfa@fjmu.edu.cn.