Efficacy and tolerability of a low-glycemic-index ketogenic diet in Angelman syndrome: findings from the DIANE study - Escalera, GI; Calleja, RC; Ruiz, ML; Herguedas, JL; Junquera, CG; Pascual, MLC; Caballero-Bermejo, AF; Roman-Riechmann, E; Pascual, SIP; Ruiz-Antorán, B (Orphanet Journal Of Rare Diseases, 2025)