- Correspondence to Dr Pedro Marcos, Serviço de Gastrenterologia, Centro Hospitalar de Leiria, Rua das Olhalvas, 2410-197, Leiria, Portugal;
- Received October 15, 2019
- Revised January 9, 2020
- Accepted January 26, 2020
- First published February 12, 2020.
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