- Correspondence to Dr Jessica Green, Paediatric Intensive Care, Evelina children's hospital, Guy's and St Thomas' Hospital, London SE1 7EH, UK;
- Received 23 June 2016
- Revised 14 May 2017
- Accepted 20 May 2017
- Published in print 4 August 2017.
- Published online 7 August 2017.
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