- Correspondence to Dr JianLi Wang, Departments of Psychiatry and of Community Health Science, Faculty of Medicine, University of Calgary, Room 4D69, TRW Building, 3280 Hospital Dr. NW, Calgary, Alberta, Canada T2N 4Z6;
- Received May 9, 2013
- Revised November 30, 2013
- Accepted December 4, 2013
- First published January 3, 2014.
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