[1] Department of Radiology,
[2] Instituto da Criança "Prof. Pedro de Alcântara",undefined
[3] University of Sao Paulo,undefined
[4] Av. Dr. Enéas Carvalho de Aguiar,undefined
[5] 647,undefined
[6] São Paulo 05403-900,undefined
[7] Brazil,undefined
[8] Department of Pediatric Surgery,undefined
[9] ,undefined
[10] Instituto da Criança "Prof. Pedro de Alcântara",undefined
[11] University of Sao Paulo,undefined
[12] Av. Dr. Enéas Carvalho de Aguiar,undefined
[13] 647,undefined
[14] São Paulo 05403-900,undefined
[15] Brazil,undefined