1. Department of Radiology and Nuclear Medicine, Oslo University Hospital; Oslo Norway
2. Norwegian National Unit for Craniofacial Surgery; Oslo University Hospital; Oslo Norway
3. The Faculty of Medicine; Oslo University Hospital; Oslo Norway
4. Department of Medical Genetics, Oslo University Hospital; Oslo Norway
5. Department of Plastic and Reconstructive Surgery, Oslo University Hospital; Oslo Norway
6. Department of Otolaryngology, Head and Neck Surgery, Oslo University Hospital; Oslo Norway
7. Department of Neurosurgery, Oslo University Hospital; Oslo Norway