Saldeņo, Y P Prolonged persistent patent ductus arteriosus: potential perdurable anomalies in premature infants. [electronic resource] - Journal of perinatology : official journal of the California Perinatal Association Dec 2012 - 953-8 p. digital Publication Type: Comparative Study; Journal Article ISSN: 1476-5543 Standard No.: 10.1038/jp.2012.31 doi Subjects--Topical Terms: Analysis of VarianceBronchopulmonary Dysplasia--diagnosisCardiac Surgical Procedures--methodsCase-Control StudiesComorbidityDuctus Arteriosus, Patent--drug therapyEnterocolitis, Necrotizing--diagnosisFemaleHospital Mortality--trendsHumansHypertension, Pulmonary--diagnosisIndomethacin--therapeutic useInfant, NewbornInfant, PrematureIntensive Care Units, NeonatalKaplan-Meier EstimateLength of StayMalePrevalenceRetinopathy of Prematurity--diagnosisSeverity of Illness IndexSurvival AnalysisTreatment Outcome