Controversies concerning diagnostic guidelines for anomalies of the enteric nervous system: A report from the fourth International Symposium on Hirschsprung's disease and related neurocristopathies - Martucciello G; Prato AP; Puri P; Holschneider AM; Meier-Ruge W; Jasonni V; Tovar JA; Grosfeld JL (JOURNAL OF PEDIATRIC SURGERY, 2005)