- Correspondence to Dr Marzio Frazzoni, Digestive Pathophysiology Unit, Azienda Ospedaliero-Universitaria di Modena Ospedale Civile di Baggiovara, Modena, Emilia-Romagna, Italy;
- Received July 1, 2021
- Accepted August 4, 2021
- First published August 10, 2021.
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