Hyperparathyroidism Secondary to Hypovitaminosis D in Hypoalbuminemic Is Less Intense than in Normoalbuminemic Patients: A Prevalence Study in Medical Inpatients in Southern Brazil

Hypovitaminosis D in Medical Inpatients

1998 • 1,447 citations

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

1992 • 627 citations

Assessment of the Free Fraction of 25-Hydroxyvitamin D in Serum and Its Regulation by Albumin and the Vitamin D-Binding Protein *

1986 • 593 citations

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

1988 • 386 citations

Effect of Vitamin D Intake on Seasonal Variations in Parathyroid Hormone Secretion in Postmenopausal Women

1989 • 363 citations

Bone Mass, Vitamin D Deficiency, and Hyperparathyroidism in Congestive Heart Failure

1997 • 355 citations

An evaluation of the relative contributions of exposure to sunlight and of diet to the circulating concentrations of 25-hydroxyvitamin D in an elderly nursing home population in Boston

1990 • 329 citations

Plasma 25-hydroxyvitamin D and its determinants in an elderly population sample

1997 • 280 citations

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

1991 • 266 citations

Vitamin D Status and Redefining Serum Parathyroid Hormone Reference Range in the Elderly¹

2001 • 264 citations

Sunlight and vitamin D status in normal Saudi subjects

1983 • 205 citations

Plasma 25-hydroxy vitamin D concentrations in patients with fractures of the femoral neck.

1979 • 151 citations

RETRACTED: High prevalence of vitamin D deficiency and reduced bone mass in elderly women with Alzheimer’s disease

1998 • 144 citations

Influence of vitamin D on parathyroid function in the elderly.

1992 • 123 citations

Low Serum Vitamin D Metabolites in Women with Rheumatoid Arthritis

1993 • 90 citations

A high prevalence of hypovitaminosis D in Finnish medical in‐ and outpatients

2001 • 74 citations

Low levels of serum calcidiol in an African population compared to a North European population

1999 • 54 citations

Changes in Vitamin D Metabolism during Natural and Medical Menopause

1990 • 44 citations

Effect of nutrition on vitamin D status: studies on healthy and poorly nourished Brazilian children

1984 • 44 citations

25-hydroxyvitamin D absorption in patients with Crohn's disease and with pancreatic insufficiency.

1997 • 43 citations

Bone mineral density, vitamin D and anticonvulsant therapy

2000 • 41 citations

Age-related endocrine deficiencies and fractures of the proximal femur. II Implications of vitamin D deficiency in the elderly

1996 • 37 citations

Reduced Gastrointestinal Absorption of Calcium in Dementia

1990 • 37 citations

Osteoporosis after Total Gastrectomy Results of a Prospective, Clinical Study

1997 • 36 citations

Osteoporosis in Women with Spinal Cord Injuries

2001 • 28 citations

Predictors of Short-Term Changes in Serum Intact Parathyroid Hormone Levels in Hemodialysis Patients: Role of Phosphorus, Calcium, and Gender1

1998 • 24 citations

Consumo alimentar de vitaminas e minerais em adultos residentes em área metropolitana de São Paulo, Brasil

1997 • 24 citations

Levels of Serum 1,25(OH)2D in Patients with Pre-Dialysis Chronic Renal Failure.

1996 • 22 citations

Effect of income and geographic region on the nutritional value of diets in Brazil

1977 • 19 citations

[Vitamin D status in women living in Buenos Aires].

1999 • 18 citations

Severe vitamin D deficiency in Auckland.

1993 • 11 citations

Hipovitaminosis D en mujeres postmenopáusicas con masa ósea baja en la Región Metropolitana

2001 • 10 citations

Anticonvulsant Therapy and Vitamin D

1973 • 6 citations

Parathyroid Hormone Suppression by Intravenous Calcitriol: Role of Phosphate, Calcium, Race and Diabetes

2002 • 5 citations

Disordered calcium metabolism during anticonvulsant treatment.

1973 • 4 citations

[Intact whole bioactive parathormone: problems arising from comparing different methods].

2002 • 2 citations