Seasonal variations of 25 hydroxyvitamin D and parathyroid hormone in Ushuaia (Argentina), the southernmost city of the world

A MICROCOLORIMETRIC METHOD FOR THE DETERMINATION OF INORGANIC PHOSPHORUS

Hertha H. Taussky, Ephraim Shorr, Gloria Kurzmann · Journal of Biological Chemistry · 1953 · 2.6K citations · Full text

Natural Sciences, Chemistry, Analytical Chemistry +9

Influence of Season and Latitude on the Cutaneous Synthesis of Vitamin D₃: Exposure to Winter Sunlight in Boston and Edmonton Will Not Promote Vitamin D₃Synthesis in Human Skin*

Ann R. Webb, Loren Kline, Michael F. Holick · The Journal of Clinical Endocrinology & Metabolism · 1988 · 1.7K citations

Life Sciences, Biochemistry, Endocrinology +17

INCREASED SKIN PIGMENT REDUCES THE CAPACITY OF SKIN TO SYNTHESISE VITAMIN D3

T. L. Clemens, Sherry L Henderson, John S. Adams et al. · The Lancet · 1982 · 1.2K citations

Medicine, Dermatology, Nutritional Sciences +8

COMPETITIVE PROTEIN-BINDING RADIOASSAY FOR 25-HYDROXYCHOLECALCIFEROL¹

John G. Haddad, Kyung Ja Chyu · The Journal of Clinical Endocrinology & Metabolism · 1971 · 907 citations

Pharmacy, Pharmacokinetics, Pharmacology +6

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

Timothy A. Reinhardt, Ronald L. Horst, John W. Orf et al. · The Journal of Clinical Endocrinology & Metabolism · 1984 · 805 citations

Pharmacy, Pharmacology, Biopharmaceutics +15