1 Gastroenterology and Digestive Oncology Department - Université de Paris-GH APHP Centre, Hospital Cochin, Paris, Île-de-France, France stanislas.chaussade@gmail.com.
2 Gastroenterology and Digestive Oncology Department - Université de Paris-GH APHP Centre, Hospital Cochin, Paris, Île-de-France, France.