FIGURE 9-1 General nature of information gaps within the evidence base for calcium and vitamin D DRI development as related to risk assessment steps.
NOTE: 25OHD = serum 25-hydroxyvitamin D.
SOURCE: Modified from WHO, 2006.
The National Academies of Sciences, Engineering, and Medicine 500 Fifth St. N.W. | Washington, D.C. 20001
"9 Information Gaps and Research Needs."
Dietary Reference Intakes for Calcium and Vitamin D.
Washington, DC: The National Academies Press, 2011.
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