Correction to: The Natural History of Massive Left Ventricular Hypertrophy in Pediatric Hypertrophic Cardiomyopathy: A Multiregistry Analysis. - Przybylski R; Norrish G; Claggett B; Ashley EA; Bhole V; Day SM; Delle Donne G; Fernandez A; Girolami F; Gray B; Helms AS; Ingles J; et al. (Circulation, 2026)