- Correspondence to Dr Helen Fifer, Sexually Transmitted Bacteria Reference Unit Microbiology Services, Public Health England, 61 Colindale Avenue, Colindale, London NW9 5EQ, UK;
- Received July 31, 2015
- Revised October 23, 2015
- Accepted October 28, 2015
- First published November 24, 2015.
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