Recent Advances in the Quantitation of Vitamin D and Vitamin D Metabolites

Official Methods of Analysis of

1980 • 61,391 citations

Methods of Hormone Radioimmunoassay

1978 • 2,097 citations

COMPETITIVE PROTEIN-BINDING RADIOASSAY FOR 25-HYDROXYCHOLECALCIFEROL¹

1971 • 908 citations

Vitamin D ₃ -Induced Calcium-Binding Protein in Chick Intestinal Mucosa

1966 • 740 citations

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

1976 • 515 citations

Isolation and identification of 1,25-dihydroxycholecalciferol. A metabolite of vitamin D active in intestine

1971 • 501 citations

Identification of 1,25-Dihydroxycholecalciferol, a New Kidney Hormone controlling Calcium Metabolism

1971 • 496 citations

STUDIES ON EXPERIMENTAL RICKETS

1922 • 454 citations

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

1979 • 372 citations

Isolation and identification of 24,25-dihydroxycholecalciferol, a metabolite of vitamin D3 made in the kidney

1972 • 331 citations

Active transport of Ca⁴⁵ by the small intestine and its dependence on vitamin D

1959 • 326 citations

24, 25-Dihydroxyvitamin D is a metabolite of vitamin D essential for bone formation

1978 • 323 citations

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

1974 • 302 citations

Influence of sodium on calcium transport by the rat small intestine

1969 • 284 citations

1α,25-Dihydroxycholecalciferol Receptors in Intestine

1974 • 279 citations

Radioligand receptor assay for 25-hydroxyvitamin D2/D3 and 1 alpha, 25-dihydroxyvitamin D2/D3.

1976 • 259 citations

1α,25-Dihydroxycholecalciferol Receptors in Intestine

1974 • 258 citations

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

1974 • 239 citations

COMPETITIVE BINDING ASSAY FOR VITAMIN D AND 25-OH VITAMIN D*

1971 • 238 citations

Hormonal Control of Calcium Metabolism

1971 • 233 citations

Brain Target Sites for 1,25-Dihydroxyvitamin D ₃

1982 • 224 citations

1,25-Dihydroxycholecalciferol: Identification of the Proposed Active Form of Vitamin D ₃ in the Intestine

1971 • 216 citations

Active transport of calcium by the small intestine of the rat

1960 • 210 citations

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

1978 • 205 citations

Competitive Protein-Binding Assay for 25-Hydroxycholecalciferol

1974 • 203 citations

Quantitation of vitamin D and its metabolites and their plasma concentrations in five species of animals

1981 • 202 citations

An hydroxylapatite batch assay for the quantitation of 1α,25-dihydroxyvitamin D3-receptor complexes

1979 • 196 citations

Vitamin D Metabolites and Bone Mineralization in Man*

1978 • 195 citations

Filter assay for 1α,25-dihydroxyvitamin D₃. Utilization of the hormone's target tissue chromatin receptor

1974 • 172 citations

25,26-Dihydroxycholecalciferol, a metabolite of vitamin D3 with intestinal calcium transport activity

1970 • 170 citations

A radioimmunoassay for 1,25-dihydroxycholecalciferol.

1980 • 168 citations

Vitamin D and Growth1

1955 • 166 citations

High-pressure liquid chromatography: separation of the metabolites of vitamins D2 and D3 on small-particle silica columns.

1975 • 154 citations

21,25-Dihydroxycholecalciferol. A metabolite of vitamin D3 preferentially active on bone

1970 • 139 citations

Vitamin D3 metabolites and PTH synergistically stimulate bone formation of chick embryonic femur in vitro

1980 • 129 citations

Measurement of 25-hydroxyvitamin D3 in serum.

1976 • 128 citations

Isolation and identification of 1,25-dihydroxyvitamin D₂

1975 • 120 citations

Vitamin D: Biochemical, Chemical and Clinical Aspects related to Calcium Metabolism

1979 • 117 citations

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

1978 • 115 citations

25-Hydroxyvitamin D3 26,23-lactone: a new in vivo metabolite of vitamin D

1979 • 112 citations

STUDIES ON EXPERIMENTAL RICKETS

1922 • 109 citations

Discrimination in the metabolism of orally dosed ergocalciferol and cholecalciferol by the pig, rat and chick

1982 • 107 citations

Biological activity of 24,24-difluoro-25-hydroxyvitamin D3. Effect of blocking of 24-hydroxylation on the functions of vitamin D.

1979 • 106 citations

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

1977 • 105 citations

Measurement of 25-hydroxyvitamin D3 in serum.

1976 • 104 citations

The 24-hydroxylation of 1,25-dihydroxyvitamin D3.

1977 • 101 citations

Comparative biological effects of vitamins D2 and D3 and dihydrotachysterol2 and dihydrotachysterol3 in the chick

1969 • 101 citations

MEASUREMENT OF 1,25‐DIHYDROXYCHOLECALCIFEROL IN MAN BY RADIOIMMUNOASSAY

1979 • 100 citations

STUDIES ON EXPERIMENTAL RICKETS

1926 • 98 citations

Competitive protein binding assay for 24,25-dihydroxycholecalciferol

1976 • 98 citations

Competitive protein-binding radioassay of 24,25-dihydroxyvitamin D in sera from normal and anephric subjects

1977 • 95 citations

25-OHD3-26,23-lactone: A metabolite of Vitamin D3 that is 5 times more potent than 25-OHD3 in the rat plasma competitive protein binding radioassay

1979 • 94 citations

An improved radioreceptor assay for 1,25-dihydroxyvitamin D in human plasma

1981 • 93 citations

1,25-Dihydroxyvitamin D3 receptor in bovine thymus gland

1982 • 90 citations

THE REACTION OF THE CHICKEN TO IRRADIATED ERGOSTEROL AND IRRADIATED YEAST AS CONTRASTED WITH THE NATURAL VITAMIN D OF FISH LIVER OILS

1932 • 89 citations

Comparison of plasma concentrations of vitamin D and its metabolites in young and aged domestic animals

1982 • 86 citations

Studies on the mode of action of calciferol

1977 • 85 citations

GAS CHROMATOGRAPHIC BEHAVIOR OF VITAMINS D₂ AND D₃

1960 • 83 citations

The determination of the vitamin D metabolites on a single plasma sample: Changes during parturition in dairy cows

1979 • 78 citations

Effect of Vitamins D2 and D3 on Serum Calcium and Phosphorus in Rachitic Chicks

1964 • 78 citations

Direct chemical synthesis of 1.alpha.,25-dihydroxy[26,27-3H]vitamin D3 with high specific activity: its use in receptor studies

1980 • 77 citations

Die Isolierung des antirachitischen Vitamins aus Thunfischleberöl.

1936 • 77 citations

Measurement of circulating vitamin D in man

1982 • 77 citations

Impaired 24,25-Dihydroxyvitamin D Production in Anephric Human and Pig

1981 • 74 citations

The determination of 24,25-dihydroxyvitamin D and 25,26-dihydroxyvitamin D in plasma from normal and nephrectomized man.

1979 • 73 citations

A Radioimmunoassay for 1,25-Dihydroxycholecalciferol

1978 • 70 citations

High-performance liquid chromatographic assay for 25-hydroxyvitamin D3 in serum.

1977 • 70 citations

Displacement Potency of Vitamm D₂Analogs in Competitive Protein-Binding Assays for 25– Hydroxyvitamin D₃, 24,25–Dihydroxyvitamin D₃, and 1,25–Dihydroxyvitamin D₃

1980 • 69 citations

A simplified assay for dihydroxylated vitamin D metabolites in human serum: application to hyper- and hypovitaminosis D.

1980 • 67 citations

Measurement of Plasma 25‐Hydroxycholecalciferol in Man

1972 • 66 citations

Vitamin D₃ and absorption of calcium in the chick

1961 • 65 citations

Assay of 1,25-dihydroxy vitamin D3 by isotope dilution--mass fragmentography.

1979 • 64 citations

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

1977 • 64 citations

Gas Chromatographic Studies of Vitamins D₂ and D₃

1965 • 63 citations

Quantitation of the main metabolites of vitamin D in a single serum sample II. Determination by uv-absorption and competitive protein binding assays

1980 • 61 citations

A simplified assay for dihydroxylated vitamin D metabolites in human serum: application to hyper- and hypovitaminosis D.

1980 • 60 citations

Synthesis and structure proof of a vitamin D3 metabolite, 25(s),26-dihydroxycholecalciferol

1981 • 60 citations

Quantitation of the main metabolites of vitamin D in a single serum sample I. Extraction, separation and purification of metabolites

1980 • 59 citations

The Study of Urinary Acids and Related Compounds by Gas Phase Analytical Methods

1967 • 58 citations

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

1976 • 56 citations

Evidence for 24,25-dihydroxycholecalciferol receptors in long bones of newborn rats

1982 • 55 citations

Assay of plasma 25-hydroxy vitamin D

1976 • 54 citations

Isolation, identification, and biological activity of 25-hydroxy-24-oxovitamin D3: a new metabolite of vitamin D3 generated by in vitro incubations with kidney homogenates

1981 • 53 citations

1.alpha.,25,26-Trihydroxyvitamin D3: an in vivo and in vitro metabolite of vitamin D3

1981 • 52 citations

Isolation and identification of 24-hydroxyvitamin D2 and 24,25-dihydroxyvitamin D2

1980 • 52 citations

Analysis for 1,25-dihydroxyvitamin D in human plasma, after a liquid-chromatographic purification procedure, with a modified competitive protein-binding assay.

1981 • 52 citations

The estimation of vitamin D and some metabolites in human plasma by mass fragmentography

1980 • 51 citations

A novel specific assay of 25-hydroxy vitamin D3

1976 • 51 citations

Bioassay of 1,25-dihydroxyvitamin D in human plasma purified by partition, alkaline extraction, and high-pressure chromatography

1980 • 50 citations

Stereochemistry of 25‐hydroxyvitamin D₃—26,23‐lactone and 1α,25—dihydroxyvitamin D₃—26,23‐lactone in rat serum

1981 • 48 citations

Importance of the isolation of 25-hydroxyvitamin D before assay.

1978 • 48 citations

An in vitro study of vitamin D2 hydroxylases in the chick.

1976 • 48 citations

The Absence of 24,25-Dihydroxycholecalciferol in Anephric Patients

1978 • 46 citations

Plasma 1,25(OH)2 vitamin d measured by radioimmunoassay and cytosol radioreceptor assay in normal subjects and patients with primary hyperparathyroidism and renal failure

1980 • 44 citations

Detection of nanogram quantities of vitamin D by gas-liquid chromatography

1966 • 44 citations

23S,25-dihydroxyvitamin D3 as a circulating metabolite of vitamin D3. Its role in 25-hydroxyvitamin D3-26,23-lactone biosynthesis.

1982 • 43 citations

25-OHD3-26,23 lactone: Demonstration of kidney-dependent synthesis in the pig and rat

1980 • 42 citations

Vitamin D in plasma: quantitation by a nonequilibrium ligand binding assay

1981 • 42 citations

The differentiation and assay of vitamins D2 and D3 by gas-liquid chromatography

1966 • 42 citations

1-Fluorovitamin D3, a vitamin D3 analog more active on bone-calcium mobilization than on intestinal-calcium transport

1979 • 41 citations

Serum 25-hydroxyvitamin D assay. Evaluation of chromatographic and non-chromatographic procedures

1977 • 41 citations

Studies on the mode of action of calciferol XXXII. Evidence for a 24(R),25(OH)2-vitamin D3 receptor in the parathyroid gland of the rachitic chick

1981 • 40 citations

ESTIMATION OF VITAMIN D IN BLOOD SERUM

1940 • 40 citations

A method for simultaneous determination of 25-hydroxyvitamin D2 and 25-hydroxyvitamin D3 in human plasma by using two steps of high-performance liquid chromatography.

1981 • 39 citations

A sensitive competitive protein binding assay for vitamin D in plasma

1981 • 38 citations

High-pressure liquid chromatographic method for the determination of 25-hydroxycholecalciferol in cow plasma

1976 • 36 citations

Determination of 25-hydroxycholecalciferol by combined thin layer and gas chromatography

1973 • 35 citations

A Simplified competitive protein-binding assay for 25-hydroxycalciferol

1976 • 34 citations

A binding assay for 25-hydroxycalciferols and 24R,25-dihydroxycalciferols using bovine plasma globulin

1977 • 32 citations

A simplified assay for serum 25-hydroxycalciferol

1980 • 31 citations

Synthesis of 24S and 24R-hydroxy-[24-3H]vitamin D3 and their metabolism in rachitic rats

1976 • 30 citations

Calcium-binding protein of intestine: Induction by biologically significant cholecalciferol-like steroids in vitro

1978 • 28 citations

Studies on the analysis of vitamins D. 2. The analytical purification of vitamin D by differential solubility, precipitation reactions, and chromatography

1951 • 28 citations

Vitamin D3 in plasma: Quantitation by mass fragmentography

1978 • 28 citations

The determination of vitamin D

1932 • 28 citations

Synthesis of 25-hydroxy[23,24-3H]vitamin D3

1978 • 27 citations

Competitive protein binding assay for 1,25-dihydroxyvitamin D in human plasma.

1978 • 27 citations

Sequential-saturation-type assay for serum 25-hydroxyvitamin D.

1977 • 27 citations

The quantitative determination of vitamin D

1928 • 27 citations

Identification of 25,26-dihydroxyvitamin D3 as a rat renal 25-hydroxyvitamin D3 metabolite

1981 • 26 citations

Sensitive fluorescence reaction for vitamins D and dihydrotachysterol

1964 • 25 citations

A specific assay of vitamin D-3 in human serum

1978 • 24 citations

High-efficiency liquid chromatographic separation of vitamin D from precalciferol

1972 • 24 citations

Duodenal Calcium Binding Protein in the Chick: A New Bioassay for Vitamin D

1974 • 24 citations

A specific competitive protein binding assay for serum 24,25-dihydroxyvitamin d in normal children and patients with nephrotic syndrome

1980 • 23 citations

Structure and synthesis of 25-hydroxycholecalciferol-26,23-lactone, a metabolite of vitamin D3

1981 • 23 citations

Stereochemical studies on the microquantitative detection of vitamin D by gas-liquid chromatography

1968 • 23 citations

A delicate biological test for calcium-depositing substances

1921 • 22 citations

Quantitation of 25-hydroxycholecalciferol in human serum by high-pressure liquid chromatography.

1978 • 21 citations

High-performance liquid chromatography of vitamin D: enhanced ultraviolet absorbance by prior conversion to isotachysterol derivatives

1980 • 21 citations

The absolute configuration of C-25 epimers of 25,26-dihydroxy-cholecalciferol by x-ray diffraction analysis

1978 • 21 citations

Isolation and identification of 24(R)-hydroxyvitamin D3 from chicks given large doses of vitamin D3

1981 • 19 citations

Gas chromatographic-mass spectrometric properties of boronate esters of 24R,25-dihydroxycholecalciferol

1980 • 19 citations

High-performance liquid chromatography of 25-hydroxyvitamin D2 and 25-hydroxyvitamin D3 in human plasma

1981 • 19 citations

Evaluation of Vitamin D3 Supplements by Biological Assay Using the Turkey

1973 • 19 citations

The Isolation and Partial Characterization of Fraction I Protein from Spinach-Beet Chloroplasts

1965 • 19 citations

CYTORECEPTOR ASSAY FOR 1,25-DIHYDROXYVITAMIN D3: A NOVEL RADIOMETRIC METHOD BASED ON BINDING OF THE HORMONE TO INTRACELLULAR RECEPTORS IN VITRO

1980 • 19 citations

The determination of vitamin D

1932 • 18 citations

A simple direct spectrophotometric assay for 24,25-dihydroxyvitamin D3

1981 • 18 citations

A fluorinated vitamin D3 analog with biopotency greater than 1α,25-dihydroxy vitamin D3

1980 • 18 citations

Studies on the analysis of vitamins D. 1. The reaction of vitamins D and related substances with iodine trichloride

1951 • 18 citations

Gas—liquid chromatography of ergocalciferol and cholecalciferol in nanogram quantities

1969 • 17 citations

Induction of calcium-binding protein in organ-cultured chick intestine by fluoro analogs of vitamin D3

1981 • 17 citations

A sensitive and simplified receptor assay for 1,25(OH)₂vitamin D

1981 • 17 citations

The synthesis and activity in vitro of 25-masked-1α-hydroxylated vitamin D3 analogs

1978 • 17 citations

A simple method for the isolation of vitamin D metabolites from plasma extracts

1982 • 17 citations

23, 25, 26-trihydroxycholecalciferol. A 25-hydroxycholecalciferol-26,23-lactone precursor

1982 • 16 citations

Radioreceptor assay for 1.ALPHA.,24(R)25-trihydroxyvitamin D3 in human serum.

1981 • 16 citations

Protein Binding Assays for 25-Hydroxy, 24,25-Dihydroxy and 1,25-Dihydroxy Metabolites of Vitamin D in Human Plasma

1981 • 16 citations

Assay of 1,25-Dihydroxyvitamin D and Other Active Vitamin D Metabolites in Serum: Application to Animals and Humans

1979 • 15 citations

Determination of vitamin D3 in cod-liver oil (Lebertran) by high-pressure liquid chromatography

1978 • 14 citations

Quantitative Analysis of Vitamin D3 in a Feed Using Normal Phase High Pressure Liquid Chromatography

1979 • 14 citations

A competitive protein binding assay for plasma 25-hydroxyvitamin D3 in normal children.

1976 • 14 citations

Assay for Vitamin D2 and Vitamin D3 in Plasma of Dairy Cows: Changes after Massive Dosing of Vitamin D3

1979 • 14 citations

The assay of the antirachitic vitamin D

1928 • 14 citations

Plasma Concentrations of 1,25-Dihydroxyvitamin D, 1,24R,25-Trihydroxyvitamin D3, and 1,25,26-Trihydroxyvitamin D3 After Their Administration to Dairy Cows

1983 • 14 citations

The vitamin D system: a view from basic science to the clinic

1981 • 14 citations

The elution profile of vitamin D2 metabolites from sephadex LH20 columns.

1979 • 13 citations

Observations on the distribution of anti-rachitic substances

1923 • 13 citations

A chemical routine determination of vitamin‐D; correlation with the biological determination. (Analysis of fat soluble vitamins II))

1957 • 13 citations

Studies on the analysis of vitamins D. 4. Studies on the irradiation of ergosterol and 7-dehydrocholesterol and the analysis of the products for calciferol, vitamin D3, and component sterols

1951 • 12 citations

Paper chromatography of vitamin D and other sterols.

1954 • 12 citations

QUANTITATIVE DIFFERENTIATION OF VITAMINS A AND D. II

1930 • 12 citations

Measurement of 25-Hydroxycholecalciferol in the Bovine

1976 • 11 citations

A simple and specific competitive protein binding assay for 24,25-dihydroxyvitamin d in human serum

1978 • 11 citations

The Role of the Liver in the Control of Vitamin D Metabolism

1979 • 11 citations

Improved High-Pressure Liquid Chromatographic Assay of Serum 25-Hydroxycholecalciferol and 25-Hydroxyergocalciferol After Reverse-Phase Sep-Pak C₁₈Cartridge Preparation of Sample

1981 • 11 citations

The determination of vitamin D

1932 • 11 citations

The quantitative determination of vitamin D by means of its growth-promoting property

1932 • 11 citations

Serum concentrations of 24,25(OH)2D in uremic children: A reflection of renal function

1979 • 11 citations

The configuration at C‐25 of human 25,26‐dihydroxycholecalciferol

1979 • 10 citations

A color reaction associated with vitamin D.

1926 • 10 citations

Investigations on the determination of vitamin D

1931 • 9 citations

Elevated Plasma 1,25-(OH)₂D Following Massive Dosing of Vitamin D₃ in Dairy Cattle

1979 • 9 citations

The quantitative estimation of vitamin D

1928 • 9 citations

Radioimmunoassay of Vitamin D Metabolites

1979 • 8 citations

QUANTITATIVE DIFFERENTIATION OF VITAMINS A AND D. I

1927 • 8 citations

Stereochemistry of naturally-occurring 25-hydroxyvitamin D3-26,23 lactone as determined by radioligand binding analysis and high-performance liquid chromatography

1982 • 8 citations

Reverse Phase High Pressure Liquid Chromatographic Determination of Vitamin D in Fortified Milk

1978 • 8 citations

Measurement of Plasma 1,25 (OH)₂ Vitamin D by Protein Binding Assay and Radioimmunoassay

1979 • 8 citations

The determination of vitamin D

1932 • 8 citations

Chemical Analysis of Vitamin D in Concentrates and Its Problems. XII. Analysis of Fat-Soluble Vitamins

1971 • 7 citations

Technique of the line test assay for vitamin D

1936 • 7 citations

STUDIES ON THE CHEMICAL ISOMERIZATION OF VITAMIN D

1967 • 7 citations

Assay of 25-hydroxyvitamin D3 in human plasma by high-performance liquid chromatography.

1979 • 7 citations

Studies on the analysis of vitamins D. 5. The chemical determination of vitamin D in fish-liver oils and other materials containing vitamin A

1951 • 6 citations

Critical study of Shear's aniline-hydrochloric acid reaction associated with vitamin D

1933 • 6 citations

Determination of Vitamins D by Gas-Liquid Chromatography

1970 • 6 citations

The synthesis of 25-hydroxy-cholecalciferol-23,23,24,24-t4 of high specific activity

1978 • 6 citations

Determination of Vitamin D in Blood

1969 • 6 citations

Radiocompetitive Protein Binding Assays for 25-Hydroxy Vitamin D, 24,25-Dihydroxyvitamin D and 1,25-Dihydroxy-vitamin D in Human Serum

1979 • 6 citations

Determination of Vitamins D by Gas-Liquid Chromatography

1972 • 5 citations

Effect of vitamin D2 on the assay of 24,25-dihydroxyvitamin D3 in man.

1982 • 5 citations

Determination of Vitamins D2 and D3 in Pharmaceuticals by Gas-Liquid Chromatography

1968 • 4 citations

Application of High Pressure Liquid Chromatography for Assay of Vitamin D Metabolites

1977 • 4 citations

Studies on the analysis of vitamins D. 3. Experiments on the separation of vitamin D from vitamin A and other substances by condensation techniques and selective irradiation

1951 • 4 citations

Determination of Low Levels of Vitamin D3 in Animal Feeds, Using Sephadex LH-20 and Normal Phase High Pressure Liquid Chromatography

1980 • 4 citations

High Pressure Liquid Chromatographic Determination of Vitamin D3 in Livestock Feed Supplements

1977 • 4 citations

Separation of Vitamins D2 and D3 as Isotachysterols D2 and D3 by Gas-Liquid Chromatography

1968 • 3 citations

Studies on the analysis of vitamins D. 6. A note on the preparation of floridin earth for vitamin D chromatography

1952 • 3 citations

Assay of Vitamin D₃ (Cholecalciferol) in Plasma Using Gas Chromatography/ Selected Ion Monitoring (GC/SIM)

1977 • 3 citations

Application of the law of mass action to design and performance of receptor assays for 1,25(OH)₂vitamin D

1981 • 3 citations

Determination of Vitamin D in the Presence of Vitamin A by Cylindrical Thin-Layer Chromatography

1967 • 2 citations

Analysis of Fat-Soluble Vitamins. XXIV. High Performance Liquid Chromatographic Determination of Vitamin D in Vitamin D Resin Containing Powders: Collaborative Study1

1981 • 2 citations

Microbiological assay of pure vitamin D2 and vitamin D3; possible function of non-ionic and ionic lipids for the bacterial cell.

1950 • 2 citations

Studies on Antisera against Vitamin D Metabolites

1979 • 2 citations

Studies on the chemical isomerization of vitamin D. IV. Identification of vitamin D2 and its related compounds by thin layer chromatography.

1967 • 2 citations

STUDIES ON THE CHEMICAL ISOMERIZATION OF VITAMIN D

1967 • 2 citations

Investigations on the determination of vitamin D by the preventive method: The preventive dose established as curative.

1933 • 2 citations

Radioimmunoassay for Circulating 1,25- and 25,26-Dihydroxycholecaliferols in Man

1979 • 2 citations

The degree of accuracy obtainable by the line test in estimations of vitamin D.

1933 • 2 citations

Analysis of Fat-Soluble Vitamins. XIX. Collaborative Studies on the Chemical Assay for Vitamin D Concentrates

1978 • 1 citations

Analysis of fat-soluble vitamins. XXII. High performance liquid chromatographic determination of vitamin D in concentrates. Collaborative study.

1979 • 1 citations

The Measurement of 1,25-(OH)₂-D by Competitive Protein Binding Assay in the Plasma of Anephric Patients: The Effects of Dihydrotachysterol Therapy

1979 • 1 citations

Analyses of Fat-Soluble Vitamins, XIV. Collaborative Study of the Determination of Vitamin D in Multivitamin Preparations

1977 • 1 citations

Note on Improved Method for Determination of Vitamins D2 and D3 in Pharmaceuticals by Gas Chromatography

1970 • 1 citations

An Experience with the General Intelligence Test in Teaching Freshmen Chemistry.

1923 • 1 citations