- Correspondence to Katie Byron, Department of Bioethics, Clinical Center, National Institutes of Health, 10 Center Drive, Bldg. 10, Room 1C118, Bethesda, MD 20892-0001, USA;
- Received August 3, 2016
- Revised September 13, 2016
- Accepted November 12, 2016
- First published December 5, 2016.
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