Association of the vitamin D metabolite ratio with bone turnover markers and changes in volumetric BMD. - Mulligan E; Blackwell T; Hoofnagle AN; Potok OA; Cauley JA; Burghardt AJ; Ensrud K; Kado DM; Ix JH; Orwoll E; Cawthon PM; Ginsberg C (JBMR plus, 2026)