About the Authors
- Masatoshi Matsumoto
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* E-mail: matmo10@jb3.so-net.ne.jp
Affiliation Department of Community-Based Medical System, Faculty of Medicine, Hiroshima University, Hiroshima, Japan
- Soichi Koike
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Affiliation Division of Health Policy and Management, Center for Community Medicine, Jichi Medical University, Tochigi, Japan
- Saori Kashima
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Affiliation Department of Public Health and Health Policy, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
- Kazuo Awai
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Affiliation Department of Diagnostic Radiology, Institute of Biomedical & Health Sciences, Hiroshima University, Hiroshima, Japan
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: MM SKo SKa KA. Analyzed the data: MM SKa. Wrote the paper: MM SKo SKa KA.