"Antonucci" . "ea10c0ad4f9f29485528f693047614d5" . . "Prostaglandin E"@en . "R." . "R. Antonucci" . "Preterm infants"@en . . "Nonsteroidal anti-inflammatory drugs"@en . "Patent ductus arteriosus"@en . "Ibuprofen"@en . "Urine"@en .