- Correspondence to Dr Peter J Pronovost, Armstrong Institute for Patient Safety and Quality, Johns Hopkins Medicine, 750 E. Pratt Street, 15th floor, Baltimore, MD 21202, USA;
- Received 10 August 2015
- Revised 19 February 2016
- Accepted 24 February 2016
- Published in print 1 March 2017.
- Published online 16 February 2017.
- Published first 21 March 2016.
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