- Correspondence to Dr Tadayuki Oshima, Division of Gastroenterology and Hepatology, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Hyogo, Japan;
- Received June 27, 2020
- Revised August 27, 2020
- Accepted September 4, 2020
- First published October 14, 2020.
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