1. Department of General Dentistry; Boston University Henry M. Goldman School of Dental Medicine; Boston MA USA
2. Department of Electrical and Computer Engineering and Department of Statistics; Texas A&M University; College Station TX USA
3. Center for Biomedical Informatics; Harvard Medical School; Boston MA USA
4. Children's Hospital Informatics Program at Harvard-MIT Division of Health Science; Boston MA USA
5. Department of Electrical Engineering and Computer Science; Massachusetts Institute of Technology; Cambridge MA USA
6. Unit of Pediatric Dentistry; Dental Clinic; Department of Health Science; University of Milano; Milano Italy
7. Unit of Oral Diagnosis; Dental Clinic; Department of Health Science; University of Milano; Milano Italy