1 Bradford Neonatology, Bradford Royal Infirmary, Bradford BD9 6RJ, UK; Centre for Reviews and Dissemination, University of York, Heslington, York, UK. Electronic address: sam.oddie@bthft.nhs.uk.
2 Department of Neonatology, Royal Infirmary of Edinburgh, Edinburgh, UK.
3 James Cook University Hospital, South Tees NHS Foundation Trust, Middlesbrough, UK; Department of Paediatrics and Neonatology. University of Durham, Durham, UK; Resuscitation Council, London, UK; Neonatal Task Force, International Liaison Committee on Resuscitation, Dallas, TX, USA.
4 Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK; Birmingham Women's and Children's Hospital, Birmingham, UK.