About the Authors

Shanshan Jing

Affiliation Center for Health Management and Policy, Shandong University, Ji’nan, Shandong Province, China

Aitian Yin

Affiliation Center for Health Management and Policy, Shandong University, Ji’nan, Shandong Province, China

Lizheng Shi

lshi1@tulane.edu

Affiliation Department of Global Health Systems and Development, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana, United States of America

Jinan Liu

Affiliation Department of Global Health Systems and Development, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SJ AY LS. Performed the experiments: SJ JL. Analyzed the data: SJ. Contributed reagents/materials/analysis tools: AY. Wrote the paper: SJ LS AY JL.