1. University of Minnesota School of Dentistry, Minneapolis, Minnesota, USA.
2. School of Human Sciences, The University of Western Australia, Perth, Australia.
3. Faculty of Dentistry, Khon Kaen University, Khon Kaen, Thailand.
4. Adelaide Dental School, University of Adelaide, Adelaide, Australia.
5. College of Allied Health and Nursing, Minnesota State University, Mankato, Minnesota, USA.
6. University of Minnesota College of Liberal Arts, Minneapolis, Minnesota, USA.
7. Department of Pediatrics, University of Minnesota Medical School, Minneapolis, Minnesota, USA.