Prevalence of Subclinical Vitamin D Deficiency in Different European Countries

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*

1988 • 1,640 citations

Prevalence of Vitamin D Insufficiency in an Adult Normal Population

1997 • 1,477 citations

Serum vitamin D concentrations among elderly people in Europe

1995 • 790 citations

Differences in vitamin D status between countries in young adults and the elderly

1992 • 627 citations

Determination of vitamin D status by radioimmunoassay with an 125I-labeled tracer

1993 • 439 citations

The Effect of Vitamin D Supplementation on Vitamin D Status and Parathyroid Function in Elderly Subjects*

1988 • 386 citations

Healthy elderly French women living at home have secondary hyperparathyroidism and high bone turnover in winter. EPIDOS Study Group.

1996 • 326 citations

Vitamin D status and sex hormone binding globulin: Determinants of bone turnover and bone mineral density in elderly women

1995 • 292 citations

Subclinical Vitamin D Deficiency in Postmenopausal Women with Low Vertebral Bone Mass*

1991 • 266 citations

Vitamin D status in the elderly: seasonal substrate deficiency causes 1,25-dihydroxycholecalciferol deficiency

1987 • 240 citations

Histomorphometric profile and vitamin d status in patients with femoral neck fracture

1982 • 185 citations

An investigation of sources of variation in calcium absorption efficiency.

1995 • 172 citations

Age-related Changes in Parathyroid Hormone and 25 Hydroxycholecalciferol Levels

1983 • 131 citations

VITAMIN-D STATUS IN LONG-STAY GERIATRIC PATIENTS

1975 • 128 citations

Serum 25-hydroxyvitamin D: distribution and determinants in the Swiss population

1992 • 114 citations

Seasonal Variation in Serum Concentrations of Parathyroid Hormone in Elderly People*

1983 • 111 citations

Vitamin D-dependent seasonal variation of PTH in growing male adolescents

1995 • 111 citations

Effects of vitamin D and calcium on markers of bone metabolism in geriatric patients with low serum 25-hydroxyvitamin D levels

1991 • 21 citations

Vitamin-D-Mangel und Osteomalazie beim alten Menschen

1978 • 16 citations

Clinical Use of Vitamin D Metabolite Assays (Calcidiol and Calcitriol)

1990 • 6 citations