High prevalence of hypovitaminosis D and secondary hyperparathyroidism in elders living in nonprofit homes in South Brazil

The prevalence of vitamin D inadequacy amongst women with osteoporosis: an international epidemiological investigation

Paul Lips, D. J. Hosking, Kurt Lippuner et al. · Journal of Internal Medicine · 2006 · 626 citations

Relationship Between Serum Parathyroid Hormone Levels, Vitamin D Sufficiency, and Calcium Intake

Laufey Steingrímsdóttir · JAMA · 2005 · 500 citations

Enhanced passive Ca2+ reabsorption and reduced Mg2+ channel abundance explains thiazide-induced hypocalciuria and hypomagnesemia

Tom Nijenhuis, Volker Vallon, Annemiete W.C.M. van der Kemp et al. · Journal of Clinical Investigation · 2005 · 483 citations · Full text

Active Ca2+ Transport, Electrolyte Disorder, Chemical Biology +21

Age-Related Changes in the 25-Hydroxyvitamin D Versus Parathyroid Hormone Relationship Suggest a Different Reason Why Older Adults Require More Vitamin D

Reinhold Vieth, Yasmin Ladak, Paul G. Walfish · The Journal of Clinical Endocrinology & Metabolism · 2003 · 424 citations

A new mechanism for induced vitamin D deficiency in calcium deprivation

M. R. Clements, Laura Johnson, David R. Fraser · Nature · 1987 · 340 citations

Physiology, Clinical Nutrition, New Mechanism +5