Reller, M D Ductal patency in neonates with respiratory distress syndrome. A randomized surfactant trial. [electronic resource] - American journal of diseases of children (1960) Sep 1991 - 1017-20 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial ISSN: 0002-922X Standard No.: 10.1001/archpedi.1991.02160090069025 doi Subjects--Topical Terms: Ductus Arteriosus, Patent--complicationsEchocardiographyGestational AgeHumansIndomethacin--therapeutic useInfant, NewbornProspective StudiesPulmonary Surfactants--adverse effectsRespiratory Distress Syndrome, Newborn--complicationsRiskTime Factors