- Correspondence to Prof. Tom Koch, University of British Columbia, Deaprtment of Geography (Medical) Vancouver, BC. Alton Medical Centre, 1320 Queen St. E. Toronto, ON, Canada M4L 1C3;
- Received March 4, 2017
- Revised June 6, 2017
- Accepted June 14, 2017
- First published August 28, 2017.
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