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A., Coorssen, J
"Kenyan school children have multiple micronutrient deficiencies, but increased plasma vitamin B-12 is the only detectable micronutrient response to meat or milk supplementation"
M., Showman, A
Even if they are very sensitive and relatively specific, they need further validation under carefully controlled clinical conditions, particularly in longitudinal studies
This distinction matters because aging is not driven by one isolated mechanism
