- Correspondence to Dr Claudia Estcourt, Centre for Infectious Disease: Sexual Health & HIV, Blizard Institute of Cell and Molecular Science, Barts & The London School of Medicine & Dentistry, Barts and the London NHS Trust, Barts Sexual Health Centre, Kenton & Lucas Wing, St Bartholomew's Hospital, West Smithfield, London EC1A 5BE, UK;
- Accepted June 23, 2011
- First published July 27, 2011.
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