NHS Blood and Transplant; Bristol, United Kingdom (Desai, Neuberger)
The authors declare no conflict of interest.
Address correspondence to: Rajeev Desai, M.R.C.P. (UK), NHS Blood and Transplant, Fox Den Road, Stoke Gifford, Bristol BS34 8RR, United Kingdom.
R.D. conducted literature search, data collection, data analysis, interpretation, and wrote the manuscript; and J.N. conducted data interpretation, wrote the manuscript, and supervised the work.
Received 16 December 2010.
Accepted 22 December 2010.