1. Department of Physiotherapy, Oslo Metropolitan University, Oslo, Norway
2. Department of Obstetrics and Gynecology, Oslo University Hospital, Oslo, Norway
3. Department of Dermatology, Oslo University Hospital, Oslo, Norway
4. Department of Neurology, Oslo University Hospital, Oslo, Norway
5. Unit for Psychosomatics/CL Outpatient Clinic for Adults, Acute Psychiatric Department, Oslo University Hospital, Norway