- Correspondence to Dr Deborah Watson-Jones, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, Keppel St., London WC1E 7HT, UK; and Kathy Baisley, TEG, London School of Hygiene & Tropical Medicine, Keppel St., London WC1E 7HT, UK;
- Received June 6, 2012
- Revised February 14, 2013
- Accepted February 17, 2013
- First published March 13, 2013.
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