1. Department of Dental and Maxillofacial Surgery, Usmanu Danfodiyo University Teaching Hospital, Sokoto, Nigeria
2. Resmile Craniofacial Anomaly Foundation Zamfara, Gusau, Zamfara, Nigeria
3. Department of Oral and Maxillofacial Surgery, Faculty of Dental Sciences, College of Health Science, Usmanu Danfodiyo University, Sokoto, Nigeria
4. School of Public Health, University of Western Cape, Cape town, South Africa
5. Noma Children Hospital, Sokoto, Nigeria
6. Department of Family Medicine, Usmanu Danfodiyo University Teaching Hospital, Sokoto, Nigeria
7. Department of Otolaryngology/ENT, Usmanu Danfodiyo University Teaching Hospital, Sokoto, Nigeria
8. Department of Dental and Maxillofacial Surgery, Sir Yahyah Memorial Hospital, Birnin-Kebbi, Kebbi, Nigeria
9. Department of Dental and Maxillofacial Surgery, Federal Medical Centre, Gusau, Zamfara, Nigeria
10. Department of Dental and Maxillofacial Surgery, Federal Medical Centre, Birnin-Kebbi, Kebbi Nigeria