About the Authors

Tarek Mazzawi

Roles Formal analysis, Investigation, Methodology, Project administration, Supervision, Writing – original draft, Writing – review & editing

tarek.mazzawi@gmail.com

Affiliations Section of Gastroenterology, Department of Medicine, Haukeland University Hospital, Bergen, Norway, Norwegian Competence Centre for Functional Gastro-Intestinal Disorders, Section of Gastroenterology, Department of Medicine, Haukeland University Hospital, Bergen, Norway, Center for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway

Gülen Arslan Lied

Roles Data curation, Investigation, Methodology, Project administration, Writing – review & editing

Affiliations Section of Gastroenterology, Department of Medicine, Haukeland University Hospital, Bergen, Norway, Norwegian Competence Centre for Functional Gastro-Intestinal Disorders, Section of Gastroenterology, Department of Medicine, Haukeland University Hospital, Bergen, Norway, Center for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway

Dag André Sangnes

Roles Methodology, Project administration, Writing – review & editing

Affiliation Section of Gastroenterology, Department of Medicine, Haukeland University Hospital, Bergen, Norway

Magdy El-Salhy

Roles Project administration, Supervision, Writing – review & editing

Affiliations Norwegian Competence Centre for Functional Gastro-Intestinal Disorders, Section of Gastroenterology, Department of Medicine, Haukeland University Hospital, Bergen, Norway, Center for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway, Section of Gastroenterology, Department of Medicine, Stord Hospital, Helse-Fonna, Stord, Norway

Johannes R. Hov

Roles Data curation, Funding acquisition, Writing – review & editing

Affiliation Norwegian PSC Research Center, Section of Gastroenterology and Research Institute of Internal Medicine, Division of Surgery, Inflammatory Diseases and Transplantation, Oslo University Hospital and University of Oslo, Oslo, Norway

Odd Helge Gilja

Roles Project administration, Supervision, Writing – review & editing

Affiliations Section of Gastroenterology, Department of Medicine, Haukeland University Hospital, Bergen, Norway, Norwegian Competence Centre for Functional Gastro-Intestinal Disorders, Section of Gastroenterology, Department of Medicine, Haukeland University Hospital, Bergen, Norway, Center for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway

Jan Gunnar Hatlebakk

Roles Methodology, Project administration, Supervision, Writing – review & editing

Affiliations Section of Gastroenterology, Department of Medicine, Haukeland University Hospital, Bergen, Norway, Norwegian Competence Centre for Functional Gastro-Intestinal Disorders, Section of Gastroenterology, Department of Medicine, Haukeland University Hospital, Bergen, Norway, Center for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway

Trygve Hausken

Roles Funding acquisition, Investigation, Project administration, Supervision, Writing – review & editing

Affiliations Section of Gastroenterology, Department of Medicine, Haukeland University Hospital, Bergen, Norway, Norwegian Competence Centre for Functional Gastro-Intestinal Disorders, Section of Gastroenterology, Department of Medicine, Haukeland University Hospital, Bergen, Norway, Center for Nutrition, Department of Clinical Medicine, University of Bergen, Bergen, Norway

Competing Interests

The authors have declared that no competing interests exist.