- Correspondence to Professor Dr Marlies P Schijven, Department of Surgery, Amsterdam Gastroenterology and Metabolism, Amsterdam UMC - Locatie AMC, Amsterdam 1105 AZ, North Holland, The Netherlands;
- Received July 8, 2020
- Revised August 20, 2020
- Accepted August 30, 2020
- First published October 22, 2020.
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