- Correspondence to Dr Grant S Lipman, Department of Emergency Medicine, Stanford University School of Medicine, 900 Welch Road, Stanford;
- Received 14 September 2016
- Revised 30 May 2017
- Accepted 1 June 2017
- Published in print 1 October 2017.
- Published online 28 September 2017.
- Published first 5 July 2017.
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