The authors regret <1. In the Abstract, Methods section “(pain intensity)” should be changed to “(average pain intensity)”. 2. In section 2.6 Measures, 3rd paragraph, “The primary outcome, vulvar pain intensity” (provoked by the tampon insertion and removal stimulus), is measured with the Pain Intensity Number Scale (PINS) … should correctly read “The primary outcome, vulvar pain, (PAINReportIt® average pain intensity [API]: average of current pain, and least and worst pain in the last 24 hours), measured with the Pain Intensity Number Scale (PINS) [16] … >.
The authors would like to apologise for any inconvenience caused.