1. Hospital da Criança e Maternidade, São José do Rio Preto, SP, Brazil
2. Research Group of the Clínica Godoy, São José do Rio Preto, SP, Brazil
3. Cardiology and Cardiovascular Surgery Department, Medicine School in São José do Rio Preto, São José do Rio Preto, SP, Brazil
4. National Council for Research and Development, Brazil
5. Post-Graduate Stricto Sensu, Medicine School in São José do Rio Preto, São José do Rio Preto, SP, Brazil