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

A sensitive, precise, and convenient method for determination of 1,25-dihydroxyvitamin D in human plasma

1976 • 515 citations

Determination of vitamin D and its metabolites in plasma from normal and anephric man

1979 • 372 citations

A competitive protein-binding assay for 25-hydroxy-cholecalciferol and 25-hydroxyergocalciferol in serum

1974 • 302 citations

Assay of vitamins D2 and D3, and 25-hydroxyvitamins D2 and D3 in human plasma by high-performance liquid chromatography.

1978 • 205 citations

The simultaneous measurement of vitamin D metabolites in plasma: studies in healthy adults and in patients with calcium nephrolithiasis.

1978 • 115 citations

Isolation and quantitation of endogenous vitamin D and its physiologically important metabolites in human plasma by high pressure liquid chromatography

1977 • 105 citations

COMPETITION BY 24,25-DIHYDROXYCHOLECALCIFEROL IN THE COMPETITIVE PROTEIN BINDING RADIOASSAY OF 25-HYDROXYCALCIFEROL

1976 • 56 citations

The estimation of vitamin D and its metabolites in human plasma

1981 • 54 citations

1,25-Dihydroxycholecalciferol in human serum and its relationship with other metabolites of vitamin D-3

1979 • 35 citations