- Correspondence to Dr Christopher Simon Wareham, Steve Biko Centre for Bioethics, University of the Witwatersrand, Rm 312, 3rd floor, P.V. Tobias Building, Cnr Carse O'Gowrie and York Road, Parktown, Johannesburg 2193, South Africa;
- Received 12 May 2017
- Revised 10 July 2017
- Accepted 20 July 2017
- Published online 3 August 2017.
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