2 Karolinska Universitetssjukhuset - Gastroenterologi Stockholm, Sweden Karolinska Universitetssjukhuset - Gastroenterologi Stockholm, Sweden.
3 Medilab - Täby, Sweden Medilad - Täby, Sweden.
4 Skåne University Hospital, Lund University - Department of Clinical Sciences, Malmö Malmö, Sweden Skåne University Hospital, Lund University - Department of Clinical Sciences, Malmö Malmö, Sweden.
5 Skåne University Hospital, Lund University - Department of Clinical Sciences, Section of Gastroenterology Malmö, Sweden Skåne University Hospital, Lund University - Department of Clinical Sciences, Section of Surgery Malmö, Sweden.