title: Phase switching SPE for faster 1,25-dihydroxyvitamin D analysis. 1986.
authors.forename: Bruce W
authors.initials: BW
authors.lastname: Hollis
mesh_terms: D049673:History, 20th Century; D006801:Humans; D052616:Solid Phase Extraction / Q000266:history; D014807:Vitamin D / Q000031:analogs & derivatives* / Q000097:blood / Q000266:history / Q000302:isolation & purification
chemical_list: D014807:Vitamin D; C097949:1,25-dihydroxyvitamin D