1. Department Oral Pathology, Radiology and Medicine, College of Dentistry, University of Iowa, Iowa City, Iowa, USA
2. Iowa Institute of Oral Health Research, University of Iowa, Iowa City, Iowa, USA
3. Department of Global Health, College of Public Health, University of Iowa, Iowa City, Iowa, USA
4. Department of Oral and Maxillofacial Surgery, University of Lagos, Lagos, Nigeria
5. Department of Biochemistry and Biotechnology, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
6. Department of Surgery, School of Medicine, Addis Ababa University, Addis Ababa, Ethiopia
7. Department of Operative Dentistry, College of Dentistry, University of Iowa, Iowa City, Iowa, USA
8. National Human Genomic Research Institute, Bethesda, MD, USA
9. Department of Orthodontics, University of Dundee, Dundee, UK
10. College of Law, University of Iowa, Iowa City, Iowa, USA
11. Department of Pediatrics, University of Iowa, Iowa City, Iowa, USA