1. Section for Oral and Maxillofacial Surgery & Oral Pathology; Department of Dentistry, Health; Aarhus University; Aarhus Denmark
2. Department of Oral and Maxillofacial Surgery; Aarhus University Hospital; Aarhus Denmark
3. private practice; Tinglev Denmark
4. CoDENT; Aarhus Denmark
5. Section for Biostatistics; Institute of Public Health; Health, Aarhus University; Aarhus Denmark
6. Section for Prosthetic Dentistry; Department of Dentistry; Aarhus University, Health; Aarhus Denmark