title: Useful clinical assays for vitamin D metabolites.
abstract: Advances in our understanding of the physiology of vitamin D and its importance in health and disease have depended on the accurate measurement of its metabolites in blood. Assays that were once cumbersome and insensitive are now performed easily, are highly sensitive, reproducible, and relatively inexpensive. The availability of these modern techniques has facilitated the clinical diagnosis and treatment of patients.
authors.affiliation: Bone Center, Division of Endocrinology, Cedars-Sinai Medical Center/UCLA, Los Angeles, CA 90048, USA.
authors.forename: T L
authors.initials: TL
authors.lastname: Clemens