Italian guidelines for the management of irritable bowel syndrome in children and adolescents: Joint Consensus from the Italian Societies of: Gastroenterology, Hepatology and Pediatric Nutrition (SIGENP), Pediatrics (SIP), Gastroenterology and Endoscopy (SIGE) and Neurogastroenterology and Motility (SINGEM) - Di Nardo, Giovanni; Barbara, Giovanni; Borrelli, Osvaldo; Cremon, Cesare; Giorgio, Valentina; Greco, Luigi; La Pietra, Michele; Marasco, Giovanni; Pensabene, Licia; Piccirillo, Marisa; Romano, Claudio; Salvatore, Silvia; et al. (Italian Journal of Pediatrics, 2024)