TY  - GEN
AU  - Murphy,Suzanne P
AU  - Barr,Susan I
TI  - Steps forward in assessing populations
SN  - 1938-3207
PY  - 2013///0307
KW  - Female
KW  - Humans
KW  - Male
KW  - Nutritional Status
KW  - Probability
KW  - Vitamin D
KW  - administration & dosage
KW  - Vitamin D Deficiency
KW  - epidemiology
N1  - Publication Type: Editorial; Comment
UR  - https://doi.org/10.3945/ajcn.112.053652
ER  -