1. Department of Preventive Medicine, Fujian Provincial Key Laboratory of Environment factors and Cancer, Key Laboratory of Environment and Health; School of Public Health, Fujian Medical University, No. 1 Xuefu North Road, University Town; Fuzhou 350122 China
2. Department of Health Inspection and Quarantine; School of Public Health, Fujian Medical University, No. 1 Xuefu North Road, University Town; Fuzhou 350122 China
3. Fujian Provincial Key Laboratory of Environment factors and Cancer, Key Laboratory of Environment and Health; School of Public Health, Fujian Medical University, No. 1 Xuefu North Road, University Town; Fuzhou 350122 China