1. Department of Gastroenterology; University Hospital of Saint Etienne; Saint Etienne France
2. Department of Gastroenterology; Hospices Civils de Lyon; INSERM U1111; Lyon France
3. Department of Rheumatology; University Hospital of Saint Etienne; Saint Etienne France
4. Department of Immunology; CIC1408; GIMAP EA3064; University Hospital of Saint Etienne; Saint Etienne France
5. Department of Gastroenterology; University Hospital of Nancy; Nancy France
6. Division of Gastroenterology; Inflammatory Bowel Disease Center; Icahn School of Medicine; Mount Sinai Hospital; New York NY USA