1. Edge Day Hospital, Port Elizabeth, South Africa
2. Bay Radiology, Gqeberha, Eastern Cape, South Africa
3. Department of Otolaryngology Head and Neck Surgery, Division of Facial Plastic and Reconstructive Surgery, Morsani College of Medicine, University of South Florida, Florida
4. Department of Maxillofacial sciences, La Sapienza Universitá di Roma, Roma, Italy