Total, Bioavailable, and Free 25(OH)D Relationship with Indices of Bone Health in Elderly: A Randomized Controlled Trial.
El Sabeh M, Ghanem P, Al-Shaar L, Rahme M, Baddoura R, Halaby G, Singh RJ, Vanderschueren D, Bouillon R, El-Hajj Fuleihan G.
J Clin Endocrinol Metab. 2020 Dec 06. PMID: 33280041