- Correspondence to Professor Ames Dhai, Steve Biko Centre for Bioethics, 10th Floor Medical School, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg 2193, South Africa;
- Received October 6, 2009
- Revised December 2, 2009
- Accepted January 28, 2010
- First published March 25, 2010.
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