1. Electronic Medical Record Team, Royal Children's Hospital, Parkville, Victoria, Australia
2. Department of General Medicine, Royal Children's Hospital, Parkville, Victoria, Australia
3. Health Services Research Unit, Murdoch Children's Research Institute, Melbourne, Victoria, Australia
4. Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
5. Centre for Health Analytics, Melbourne Children's Campus, Parkville, Victoria, Australia