1. Clinic for Hospital Dentistry Borås Hospital Public Dental Service Region Västra Götaland Borås Sweden
2. Special Care Dentistry/Clinic of Oral Medicine Odontologen Public Dental Service Region Västra Götaland Gothenburg Sweden
3. Department of Oral Medicine and Pathology Institute of Odontology University of Gothenburg Gothenburg Sweden
4. Department of Oral and Maxillofacial Surgery King Fahad General Hospital Jeddah Saudi Arabia
5. Department of Oral Medicine and Pathology Institute of Odontology The Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
6. Clinic for Orofacial Medicine/Hospital Dentistry Public Dental Service Region Västra Götaland Trollhättan Sweden