- Correspondence to Dr Chrysothemis Brown, Division of Transplantation Immunology and Mucosal Biology, 5th floor Tower Wing, Guy's Hospital, Great Maze Pond, London SE1 9RT, UK;
- Received August 28, 2013
- Revised November 7, 2013
- Accepted November 13, 2013
- First published December 4, 2013.
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