1. Instituto da Criança, Hospital das Clínicas, School of Medicine; University of São Paulo; São Paulo Brazil
2. School of Medicine; University of São Paulo (FMUSP) and University of City of São Paulo (UNICID); São Paulo Brazil
3. Clinical Laboratory; Pathology Department; Hospital das Clínicas; University of Sao Paulo; São Paulo Brazil
4. Maternal and Child Health Department; School of Public Health; University of São Paulo; São Paulo Brazil
5. Department of Pediatric; Pediatric Pulmonology Unit, Instituto da Criança, Hospital das Clínicas, School of Medicine; University of São Paulo; São Paulo Brazil