- Correspondence to Dr Darlene R House, Emergency Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA;
- Received 26 March 2013
- Revised 30 March 2015
- Accepted 31 August 2015
- Published in print 1 January 2016.
- Published online 15 December 2015.
- Published first 15 October 2015.
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