About the Authors

Zhijie Zhang

epistat@gmail.com

Affiliations Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai, People’s Republic of China, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, People’s Republic of China, Laboratory for Spatial Analysis and Modeling, School of Public Health, Fudan University, Shanghai, People’s Republic of China

Robert Bergquist

Affiliation Ingerod, Brastad, Sweden

Dongmei Chen

Affiliation Laboratory of Geographic Information and Spatial Analysis, Department of Geography, Faculty of Arts and Science, Queen’s University, Kingston, Ontario, Canada

Baodong Yao

Affiliations Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai, People’s Republic of China, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, People’s Republic of China

Zengliang Wang

Affiliations Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai, People’s Republic of China, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, People’s Republic of China, Laboratory for Spatial Analysis and Modeling, School of Public Health, Fudan University, Shanghai, People’s Republic of China

Jie Gao

Affiliations Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai, People’s Republic of China, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, People’s Republic of China, Laboratory for Spatial Analysis and Modeling, School of Public Health, Fudan University, Shanghai, People’s Republic of China

Qingwu Jiang

Affiliations Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai, People’s Republic of China, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, People’s Republic of China, Laboratory for Spatial Analysis and Modeling, School of Public Health, Fudan University, Shanghai, People’s Republic of China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: ZJZ RB DMC QWJ. Performed the experiments: ZJZ BDY ZLW JG. Analyzed the data: ZJZ BDY ZLW JG QWJ. Contributed reagents/materials/analysis tools: ZJZ RB DMC BDY ZLW JG QWJ. Wrote the paper: ZJZ RB DMC BDY ZLW JG QWJ.