1. Neonatal Intensive Care Unit, The James Cook University Hospital, Middlesbrough TS4 3BW, UK
2. Clinical Academic Office, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE1 7RU, UK
3. Department of Physics, University of Durham, Durham DH1 3LE, UK
4. Department of Computer and Information Sciences, Northumbria University, Newcastle upon Tyne NE1 8ST, UK
5. Department of Nursing, Midwifery, and Health, Northumbria University, Newcastle upon Tyne NE1 8ST, UK
6. Division of Neonatology, Pediatric Intensive Care and Neuropediatrics, Department of Pediatrics, Comprehensive Center for Pediatrics, Medical University of Vienna, 1090 Vienna, Austria
7. National Perinatal Epidemiology Unit, Medical Sciences Division, Nuffield Department of Population Health, University of Oxford, Oxford OX1 2JD, UK
8. Newborn Services, Southmead Hospital, North Bristol Trust, Bristol BS10 5NB, UK
9. Faculty of Health Sciences, University of Bristol, Bristol BS8 1QU, UK