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Response to ‘Declines in anogenital warts diagnoses since the change in 2012 to use the quadrivalent HPV vaccine in England: data to end 2017’ by Checchi et al

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  • Handling editor Anna Maria Geretti

  • Contributors Both authors participated in the analysis and interpretation of the data and the development of this letter. Both had full access to the data and gave final approval before submission.

  • Competing interests VB and SW are employees of the GSK group of companies. VB also holds shares in the GSK group of companies. GlaxoSmithKline Biologicals SA took in charge all costs associated with the development and publication of this short letter.

  • Patient consent for publication Not required.

  • Provenance and peer review Not commissioned; internally peer reviewed.