- Correspondence to:
Prof. B M de Oliveira
Departamento de Pediatria da Faculdade de Medicina da UFMG, Av Alfredo Balena 190, Belo Horizonte 30130-100, Brazil;
- Accepted November 12, 2003
- First published July 21, 2004.
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.