1. Department of Upper Abdominal Diseases, Karolinska University Hospital, Stockholm, Sweden
2. Department of Medicine, Huddinge, Karolinska Institutet, Stockholm, Sweden
3. Alby Health Centre, Health Care Services Stockholm County, Stockholm, Sweden
4. Gastroenterology Department, Advanced Endoscopy Center Carlos Moreira da Silva, Hospital Pedro Hispano, ULS Matosinhos, Porto, Portugal
5. Department of Clinical Science, Intervention, and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden