Case report: Novel ACTN4 variant of uncertain significance in a pediatric case of steroid-resistant nephrotic syndrome requesting kidney transplantation - Alarcón, Ignacio; Peralta, Carolina; Cammarata-Scalisi, Francisco; Araya Castillo, Maykol; Cano, Francisco; Rojo, Angélica; Ceballos, María Luisa; Krall, Paola (Frontiers in Nephrology, 2025)