Activin-A urine levels correlate with radiological patterns in preterm infants complicated by intraventricular hemorrhage. - Lapergola, Giuseppe; Gasparroni, Giorgia; Graziosi, Alessandro; Gruzfeld, Darek; Moataza, Bashir; Aboulgar, Hanna; Mufeed, Hala; Iskander, Iman; Livolti, Giovanni; Galvano, Fabio; Levantini, Gabriella; D'Adamo, Ebe; et al. (Italian Journal of Pediatrics, 2025)