1. Facial Plastic and Reconstructive Surgery, Department of Otolaryngology-Head and Neck Surgery, Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts, USA
2. Division of Oral and Maxillofacial Surgery, Department of Dentistry, College of Health Science, University of Zimbabwe, Harare, Zimbabwe
3. Facial Plastic and Reconstructive Surgery, Department of Otolaryngology-Head and Neck Surgery, University of California Davis, Sacramento, California, USA
4. Department of Surgery, University Teaching Hospital Kigali
5. School of Medicine and Pharmacy, College of Medicine & Health Sciences, University of Rwanda, Kigali, Rwanda