- Correspondence to Dr Tina Rulli, Clinical Center Department of Bioethics, National Institutes of Health, 10 Center Drive Bldg 10, Room 1C118, Bethesda, MD 20892, USA;
- Received June 11, 2013
- Revised October 29, 2013
- Accepted April 2, 2014
- First published April 30, 2014.
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