1. Su BH, Lin HY, Chiu HY, Tsai ML, Chen YT, Lu IC. Therapeutic strategy of patent ductus arteriosus in extremely preterm infants. Vol. 61, Pediatrics and Neonatology. Elsevier (Singapore) Pte Ltd; 2020. p. 133–41.
2. H Al Nemri AM. Review Article Patent ductus arteriosus in preterm infant: Basic pathology and when to treat [Internet]. Vol. 14, SUDANESE JOURNAL OF PAEDIATRICS. 2014. Available from: http://www.sudanjp.org
3. Weisz DE, More K, McNamara PJ, Shah PS. PDA ligation and health outcomes: A meta-analysis. Vol. 133, Pediatrics. American Academy of Pediatrics; 2014.
4. McEvoy CT, Jain L, Schmidt B, Abman S, Bancalari E, Aschner JL. Bronchopulmonary Dysplasia: NHLBI Workshop on the Primary Prevention of Chronic Lung Diseases. Ann Am Thorac Soc [Internet]. 2014;11(Supplement 3):S146–53. Available from: https://doi.org/10.1513/AnnalsATS.201312-424LD
5. Neonatal Necrotizing Enterocolitis. Therapeutic Decisions Based upon Clinical Staging;BELL MJ;Ann Surg,1978