1. Department of Social Medicine, Universidade Federal de Pelotas, C.P. 464, 96.001 Pelotas RS, Brazil
2. Karolinska Institutet, Department of Social Medicine, Kronan Health Centre, Stockholm, Sweden
3. Maternal and Child Health Division, Ministry of Health, Brazil
4. Pan-American Health Organization, Brazil
5. United Nations Children's Fund (UNICEF), Brazil
6. Brazilian Society of Pediatrics, Brazil
7. Pastoral da Criança, National Conference of Brazilian Bishops, Brazil
8. Project Hope and Universidade Federal do Ceará, Brazil