1. Division of Pediatric Dentistry; Department of Pediatric Dentistry; University of Pernambuco; Recife Brazil
2. Division of Pediatric Dentistry; Department of Dental Medicine; Karolinska Institutet; Stockholm Sweden
3. Center for Research in Childhood Health; University of Southern Denmark; Odense Denmark
4. CAPES Foundation; Ministry of Education of Brazil; Brasilia Brazil
5. School of Physical Education; University of Pernambuco; Recife PE Brazil