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A.G. owned equity in Neonatal Echo Skills and has received grant support from the American Heart Association. E.D. received lecture fees and consulting fees from Chiesi Pharmaceutical. E.N. received grant support from Research Council of Norway and Vestfold Hospital Trust. K.B. received lecture fees from Chiesi Pharmaceutical. M.B. holds a patent \u201cThermal shield for the newborn baby\u201d. S.R. received lecture fees for Phillips Ultrasound and GE Ultrasound. W.P.B. has received grant support from The Netherlands Organization for Health and Development (ZonMw; grant number 843002608). Z.M. has received lecture fees from Chiesi Pharmaceutical. The remaining authors declared no competing interests.","order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}]}}