- Correspondence to Professor Douglas MacKay, Department of Public Policy, Core Faculty Member, Center for Bioethics, University of North Carolina, 217 Abernethy Hall, 131 S. Columbia Street, Campus Box 3435, Chapel Hill, NC 27599, USA;
- Received March 6, 2015
- Revised May 1, 2015
- Accepted May 17, 2015
- First published June 2, 2015.
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