- Correspondence to Dr Anatole Menon Johansson, Department of Sexual Health, Guy's & St Thomas’ NHS Foundation Trust, Burrell Street Sexual Health Clinic, 4-5 Burrell Street, London SE1 0UN, UK;
- Received November 23, 2015
- Revised January 26, 2016
- Accepted February 14, 2016
- First published March 4, 2016.
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