- Correspondence to Yoshito Nishimura, Department of General Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan;
- Received July 1, 2020
- Revised July 9, 2020
- Accepted July 18, 2020
- First published August 12, 2020.
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