- Correspondence to Dr Frank J Overdyk, Department of Anesthesiology, Hofstra North Shore-LIJ School of Medicine, Long Island Jewish Medical Center, 270 76th Avenue, New Hyde Park, NY 11040, USA;
- Received 23 March 2015
- Revised 3 November 2015
- Accepted 13 November 2015
- Published in print 1 December 2016.
- Published online 18 November 2016.
- Published first 11 December 2015.
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- Data supplement 1 - Online supplement
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