title: Relative value of 25(OH)D and 1,25(OH)2D measurements.
authors.affiliation: Department of Endocrinology, VU University Medical Center, Amsterdam, The Netherlands. p.lips@vumc.nl
authors.forename: Paul
authors.initials: P
authors.lastname: Lips
mesh_terms: D006801:Humans; D014807:Vitamin D / Q000031:analogs & derivatives* / Q000097:blood / Q000378:metabolism / Q000592:standards; D014808:Vitamin D Deficiency / Q000175:diagnosis*
chemical_list: D014807:Vitamin D; C097949:1,25-dihydroxyvitamin D; C104450:25-hydroxyvitamin D