1. Department of Surgery, Kisii General Hospital, Kisii, Kenya
2. Department of Human Anatomy, University of Nairobi College of Health Sciences, University of Nairobi, Nairobi, Kenya
3. Department of Oral and Maxillofacial Surgery, University of Nairobi, Nairobi, Kenya
4. Department of Periodontology/Community and Preventive Dentistry, School of Dental Sciences, University of Nairobi, Nairobi, Kenya