Persistent pulmonary hypertension in children after apparent resolution of ultrasound-defined pulmonary hypertension associated with bronchopulmonary dysplasia. - Takeoka, Mami; Sawada, Hirofumi; Mitani, Yoshihide; Ohashi, Hiroyuki; Yodoya, Noriko; Ohya, Kazunobu; Tsuboya, Naoki; Harada, Tomoya; Hirayama, Masahiro (European Journal of Pediatrics, 2025)