Longitudinal changes and seasonal variations in serum 25-hydroxyvitamin D levels in different age groups: results of the Longitudinal Aging Study Amsterdam

Cross-sectional study on different characteristics of physical activity as determinants of vitamin D status; inadequate in half of the population

(2013) E G H M van den Heuvel et al.   EUROPEAN JOURNAL OF CLINICAL NUTRITION

Temporal trends and determinants of longitudinal change in 25-hydroxyvitamin D and parathyroid hormone levels

(2012) Claudie Berger et al.   JOURNAL OF BONE AND MINERAL RESEARCH

Serum 25-Hydroxyvitamin D Concentrations and Prevalence Estimates of Hypovitaminosis D in the U.S. Population Based on Assay-Adjusted Data

(2012) Vijay Ganji et al.   JOURNAL OF NUTRITION

Seasonal Variation in 25-Hydroxyvitamin D Concentrations in the Cardiovascular Health Study

(2011) A. B. Shoben et al.   AMERICAN JOURNAL OF EPIDEMIOLOGY

Worldwide vitamin D status

(2011) Natasja M. van Schoor et al.   BEST PRACTICE & RESEARCH CLINICAL ENDOCRINOLOGY & METABOLISM

Cohort Profile: The Longitudinal Aging Study Amsterdam

(2011) M. Huisman et al.   INTERNATIONAL JOURNAL OF EPIDEMIOLOGY

Evaluation, Treatment, and Prevention of Vitamin D Deficiency: an Endocrine Society Clinical Practice Guideline

(2011) Michael F. Holick et al.   JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM

Tracking of Serum 25-Hydroxyvitamin D Levels During 14 Years in a Population-based Study and During 12 Months in an Intervention Study

(2010) R. Jorde et al.   AMERICAN JOURNAL OF EPIDEMIOLOGY

Sunlight and dietary contributions to the seasonal vitamin D status of cohorts of healthy postmenopausal women living at northerly latitudes: a major cause for concern?

(2010) H. M. Macdonald et al.   OSTEOPOROSIS INTERNATIONAL

Demographic Differences and Trends of Vitamin D Insufficiency in the US Population, 1988-2004

(2009) Adit A. Ginde et al.   ARCHIVES OF INTERNAL MEDICINE

Serum 25-hydroxyvitamin D status of the US population: 1988–1994 compared with 2000–2004

(2008) Anne C Looker et al.   AMERICAN JOURNAL OF CLINICAL NUTRITION

Vitamin D Status, Parathyroid Function, Bone Turnover, and BMD in Postmenopausal Women With Osteoporosis: Global Perspective

(2008) Natalia O Kuchuk et al.   JOURNAL OF BONE AND MINERAL RESEARCH