1. Department of Pediatric Dentistry, UIC College of Dentistry University of Illinois Chicago Chicago Illinois USA
2. Department of Pediatrics, UIC College of Medicine University of Illinois Chicago Chicago Illinois USA
3. Institute for Health Research and Policy University of Illinois at Chicago Chicago Illinois USA
4. Department Preventive and Restorative Dental Sciences, UCSF School of Dentistry University of California San Francisco California USA
5. Division of Preventative and Restorative Sciences, Section of Pediatric Dentistry, UCLA School of Dentistry University of California Los Angeles California USA
6. Department of Orofacial Sciences, UCSF School of Dentistry University of California San Francisco California USA