About the Authors
- Shu-Kang Wang
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Affiliation Department of Epidemiology and Biostatistics, School of Public Health, Shandong University, Jinan, China
- Wei Ma
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Affiliation Department of Epidemiology and Biostatistics, School of Public Health, Shandong University, Jinan, China
- Shumei Wang
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Affiliation Department of Epidemiology and Biostatistics, School of Public Health, Shandong University, Jinan, China
- Xiang-Ren Yi
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Affiliation The College of Physical Education of Shandong University, Jinan, China
- Hong-Ying Jia
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Affiliation The Second Hospital of Shandong University, Jinan, China
- Fuzhong Xue
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* E-mail: xuefzh@sdu.edu.cn
Affiliation Department of Epidemiology and Biostatistics, School of Public Health, Shandong University, Jinan, China
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: SKW FX. Analyzed the data: SKW HYJ. Wrote the paper: SKW FX. Collected the data: SKW WM SW XRY HYJ.