Increase in methemoglobin fraction due to the use of glyceryl trinitrate patches in preterm infants: a case report and literature review - Calandrino, Andrea; Vinci, Francesco; Battaglini, Marcella; Caruggi, Samuele; Andreato, Chiara; Montobbio, Carolina; Vannati, Marianna; Minghetti, Diego; Brigati, Giorgia; Ramenghi, Luca Antonio (Frontiers in Pediatrics, 2025)