[1,25(OH)2D]	1,25-dihydroxyvitamin D
CYP24A1	24-hydroxylase
[25(OH)D]	25-hydroxyvitamin D
CYP27B1	25-hydroxyvitamin D 1-α hydroxylase
ES	Endocrine Society
HRT	hormone replacement therapy
IOM	Institute of Medicine
LC-TMS	Liquid Chromatography-Tandem Mass Spectrometry
MET	Metabolic Equivalent of Task
MA/H	Mexican American/Hispanic
MEC	Mobile Examination Centers
NHANES	National Health and Nutrition Examination Survey
NHB	non-Hispanic black
NCHS	National Center for Health Statistics
PIR	poverty income ratio
UV	Ultraviolet
US	United States
VDR	vitamin D receptors