- Correspondence to Dr Emile Tompa, Institute for Work & Health, 481 University Avenue, Suite 800, Toronto, Ontario, Canada M5G 2E9;
- Received 28 October 2016
- Revised 10 May 2017
- Accepted 20 May 2017
- Published in print 27 July 2017.
- Published online 29 July 2017.
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