1. Innlandet Hospital Trust, Ottestad; and University of Oslo, Norway
2. Innlandet Hospital Trust, Ottestad; and University of Tromsø, Norway
3. IPS Employment Center, Lebanon, USA
4. University of Oslo; and Innlandet Hospital Trust, Gjøvik, Norway
5. University of Oslo; and Akershus University Hospital, Norway
6. Innlandet Hospital Trust, Ottestad; and Inland Norway University Of Applied Sciences, Norway