 There's already some evidence from transplant patients that the drug may help improve oral health. And as part of the study, Ahn will also measure changes in participants' microbiomes and their biological clocks. The study will enroll participants over the age of 50 who have gum recession. They will take the drug for eight weeks. If our results show that it's safe and there's actually efficacy, then that's a direct evidence showing that if we targeted something systemically, we could actually improve oral health.