1. Isayama T, Kusuda S, Reichman B, Lee SK, Lehtonen L, Norman M, et al. Neonatal intensive care unit-level patent ductus arteriosus treatment rates and outcomes in infants born extremely preterm. J Pediatr 2020;220:34-9.e5.
2. Morbidity and mortality in preterm neonates with patent ductus arteriosus on day 3;Sellmer;Arch Dis Child Fetal Neonatal Ed,2013
3. Ductal shunting, high pulmonary blood flow, and pulmonary hemorrhage;Kluckow;J Pediatr,2000
4. Chronic oxygen dependency in infants born at 24-32 weeks' gestation: The role of antenatal and neonatal factors;Todd;J Paediatr Child Health,1997
5. Abnormal cerebral blood flow patterns in preterm infants with a large patent ductus arteriosus;Martin;J Pediatr,1982