Lee, Lleona C L Outcome following patent ductus arteriosus ligation in premature infants: a retrospective cohort analysis. [electronic resource] - BMC pediatrics May 2006 - 15 p. digital Publication Type: Journal Article ISSN: 1471-2431 Standard No.: 10.1186/1471-2431-6-15 doi Subjects--Topical Terms: Cardiovascular Surgical Procedures--adverse effectsCohort StudiesCyclooxygenase Inhibitors--therapeutic useDuctus Arteriosus, Patent--mortalityHumansInfant, NewbornInfant, PrematureLigationMorbidityRetrospective StudiesRisk FactorsTreatment Outcome