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Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc
considers such issues as the public health significance of the risk, the technical feasibility of achieving various degrees of risk control, and the economic and social costs of this control
RNA
Ribonucleic acid
RNI R
ecommended Nutrient Intake
RXR
Retinoid X receptor
SD
Standard deviation
SE
Standard error
SEM
Standard error of the mean
SOD
Superoxide dismutase
sTfR
Soluble transferrin receptor
TDS
Total Diet Study; a study conducted by the Food and Drug Administration
TfR
Transferrin receptor
Tg
Thyroglobulin
Thyrotropin
Glycoprotein hormone that regulates thyroid function
TIBC
Total iron binding capacity
TPN
Total parenteral nutrition
TRH
Thyrotropin-releasing hormone
TSH
Thyroid stimulating hormone, also known as thyrotropin
UF
Uncertainty factor; number by which the NOAEL (or LOAEL) is divided to obtain the Tolerable Upper Intake Level (UL); the size of the UF varies depending on the confidence in the data and the nature of the adverse effect
