http://www.nationwidechildrens.org/medical-professional-publications/nsaids-for-patent-ductus-arteriosus-do-not-improve-important-outcomes-in-infants-born-preterm?contentId=159070&orgId=4459
http://www.nationwidechildrens.org/medical-professional-publications/nsaids-for-patent-ductus-arteriosus-do-not-improve-important-outcomes-in-infants-born-preterm?contentId=159070&orgId=4459