Chromatography of serum on Sep-pak C18 corrects falsely elevated vitamin D metabolite levels measured by protein binding assay

COMPETITIVE PROTEIN-BINDING RADIOASSAY FOR 25-HYDROXYCHOLECALCIFEROL¹

1971 • 908 citations

A Microassay for 1,25-Dihydroxyvitamin D Not requiring High Performance Liquid Chromatography: Application to Clinical Studies*

1984 • 809 citations

A Rapid Assay for 25-OH-Vitamin D₃Without Preparative Chromatography*

1974 • 239 citations

Competitive Protein-Binding Assay for 25-Hydroxycholecalciferol

1974 • 203 citations

Absorption of vitamin D3-3H in control subjects and patients with intestinal malabsorption.

1966 • 187 citations

Plasma 25-hydroxy vitamin D concentrations in patients with fractures of the femoral neck.

1979 • 151 citations

Silica Sep-Pak preparative chromatography for vitamin D and its metabolites

1981 • 70 citations

Some problems associated with assay of 25-hydroxycalciferol in human serum.

1977 • 64 citations

A rapid and simple method for the measurement of plasma 25-hydroxyvitamin D2 and 25-hydroxyvitamin D3 using Sep-Pak C18 cartridges and a single high-performance liquid Chromatographie step

1982 • 59 citations

A Competitive Protein-Binding Assay for 25-Hydroxycholecalciferol

1975 • 55 citations

Significance of serum level of 25-hydroxycholecalciferol in gastrointestinal disease

1978 • 44 citations

CHRONIC DIPHENYLHYDANTOIN THERAPY DOES NOT REDUCE PLASMA 25‐HYDROXY‐VITAMIN D

1979 • 39 citations