- Correspondence to Dr Toshi A Furukawa, Departments of Health Promotion and Human Behavior and of Clinical Epidemiology, Kyoto University Graduate School of Medicine and School of Public Health, Yoshida Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan;
- Received October 14, 2017
- Revised December 10, 2017
- Accepted December 15, 2017
- First published January 12, 2018.
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