Characteristics of Extremely Preterm Infants Undergoing Procedural Closure of Patent Ductus Arteriosus: A Retrospective Cohort Study. - Jayakumar, N.; Uthayakumaran, G.; Boyd, S. M.; Mervis, J.; Halliday, R.; Webb, A.; Popat, H.; Nimbalkar, Somashekhar Marutirao (International Journal of Pediatrics, 2025)