1. Department of Dermatology and Allergy Copenhagen University Hospital – Herlev and Gentofte Copenhagen Denmark
2. Department of Clinical Medicine, Faculty of Health and Medical Sciences University of Copenhagen Copenhagen Denmark
3. Gastro Unit Copenhagen University Hospital–Hvidovre Copenhagen Denmark
4. Department of Clinical Biochemistry Odense University Hospital, Svendborg Hospital Svendborg Denmark
5. Department of Clinical Research University of Southern Denmark Odense Denmark
6. Department of Dermatology Zealand University Hospital Roskilde Denmark