- Correspondence to Dr Michael P Goldman, Section of Pediatric Emergency Medicine, Yale University School of Medicine, 100 York Street, Suite 1D New Haven, CT 06520 USA;
- Received 31 October 2016
- Revised 26 June 2017
- Accepted 15 July 2017
- Published in print 10 August 2017.
- Published online 11 August 2017.
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