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Jensen ET, van der Burg JW, O'Shea TM, Joseph RM, Allred EN, Heeren T, Leviton A, Kuban KCK; Extremely Low Gestational Age Newborns Study Investigators.Jensen ET, et al.J Pediatr. 2017 Aug;187:50-57.e3. doi: 10.1016/j.jpeds.2017.02.064. Epub 2017 Mar 21.J Pediatr. 2017.PMID: 28341527Free PMC article.