Related references
Note: Only part of the references are listed.
Letter
Medicine, General & Internal
Trends in Use of High-Dose Vitamin D Supplements Exceeding 1000 or 4000 International Units Daily, 1999-2014
Mary R. Rooney et al.
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION (2017)
Article
Medicine, General & Internal
Trends in Dietary Supplement Use Among US Adults From 1999-2012
Elizabeth D. Kantor et al.
JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION (2016)
Article
Nutrition & Dietetics
Estimation of Total Usual Calcium and Vitamin D Intakes in the United States
Regan L. Bailey et al.
JOURNAL OF NUTRITION (2010)