About the Authors

Craig Tipple

c.tipple@imperial.ac.uk

Affiliation Faculty of Medicine, Imperial College London, London, United Kingdom

Rachael Jones

Affiliation West London Centre for Sexual Health, Chelsea and Westminster Hospital NHS Foundation Trust, London, United Kingdom

Myra McClure

Affiliation Faculty of Medicine, Imperial College London, London, United Kingdom

Graham Taylor

Affiliation Faculty of Medicine, Imperial College London, London, United Kingdom

Competing Interests

I have read the journal's policy and the authors of this manuscript have the following competing interests: RJ has received funding to attend conferences or educational meetings, honoraria and/or funding for research from Gilead Sciences, Bristol Myers Squibb, Janssen, GlaxoSmithKline/Viiv Healthcare and Abbvie. CT has received funding to attend conferences or educational meetings and/or honoraria from Gilead Sciences, Bristol Myers Squibb, Janssen and GlaxoSmithKline/Viiv Healthcare. This does not alter our adherence to all PLOS policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: CT GT. Performed the experiments: CT. Analyzed the data: CT GT MMC. Contributed reagents/materials/analysis tools: CT GT MMC. Wrote the paper: CT GT RJ MMC. Coordinated study authorisation, regulation and recruitment at a second clinical site: RJ.