1. Chongqing Key Laboratory of Oral Disease and Biomedical Sciences, Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education & Stomatological Hospital of Chongqing Medical University, Chongqing 401174, China
2. Key Laboratory of Three Gorges Reservoir Region’s Eco-Environment, Ministry of Education, Faculty of Urban Construction and Environmental Engineering, Chongqing University, Chongqing 40005, China