using data from the second national health and nutrition examination survey ( nhanes ii ) , mean values of five iron status indicators ( hemoglobin , mean corpuscular volume , transferrin saturation , erythrocyte protoporphyrin , and serum ferritin ) and dietary intakes of several nutrients and food groups were compared between regular supplement users and nonusers aged 1-19 y .
C0019046
hemoglobin
C0014792
erythrocyte