Eid municipality, Eidfjord, Norway
Sagene ditrict, Oslo, Oslo, Norway
St.Hanshaugen district, Oslo, Oslo, Norway
Department of Psychology, Oslo, Norway
University of Oslo, Oslo, Norway
University of Oslo, Oslo, Norway
Research and Development Primary Health Care, Region Västra Götaland,, Borås, Sweden
Universitair Medisch Centrum Utrecht, Utrecht, Netherlands
Medical University of Lodz,, Łódź, Poland
Department of Community Medicine and Global Health,University of Oslo, Oslo, Norway
Institute of Clinical Dentistry, Faculty of Dentistry, University of Oslo, Oslo, Norway
Institute of Clinical Dentistry, Faculty of Dentistry, University of Oslo, Oslo, Norway
University of Oslo, Oslo, Norge, Norway