- Correspondence to Dr Joseph GL Lee, Department of Health Education and Promotion, College of Health and Human Performance, East Carolina University, 1000 E. 5th Street, Mail Stop 529, Greenville, NC 27858, USA;
- Received October 5, 2016
- Revised December 16, 2016
- Accepted February 10, 2017
- First published March 1, 2017.
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