1 Discipline of Paediatrics and Child Health, Trinity College, the University of Dublin, Dublin, Ireland.
2 Trinity Research in Childhood centre (TRiCC), Trinity College Dublin, Ireland & Trinity Translational Medicine Institute (TTMI), Trinity College Dublin, St James Hospital, Dublin, Ireland.
3 Neonatology, Coombe Hospital, Dublin, Ireland.
4 Neonatology & Neurodisability, Children's Health Ireland at Crumlin & Tallaght, Dublin, Ireland.
5 University Hospitals Rainbow Babies & Children's Hospital, Cleveland, OH, USA. cfb3@case.edu.
6 Case Western Reserve University, Cleveland, OH, USA. cfb3@case.edu.