1. Department of Oral and Maxilla-Facial Surgery, Oral Maxillofacial Head and Neck Oncology Service, Faculty of Dental Medicine, University of Kinshasa, Kinshasa, The Democratic Republic of the Congo, Head and Director of the National Center Laboratory of Oral Biomedicine, Ministry of Research Innovation and Technology, Democratic Republic of the Congo
2. Department of Maxillo-Facial and Oral Surgery, Faculty of Dentistry and WHO Collaborating Centre, University of the Western Cape, Cape Town, South Africa
3. Department of Oral Maxillofacial Head and Neck Oncology Surgery, School and Hospital of Stomatology, Wuhan University, 237 Luoyu Road, Wuhan, P.R. China
4. University of Portsmouth Dental Academy, Faculty of Science and Health, University of Portsmouth, PO1 2QG, Portsmouth, United Kingdom