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The choice depends on the specific aims of the investigation
Ferreira, N
Neurons of the ventral midbrain that synthesize and release dopamine may be particularly susceptible to aging and have been described as biomarkers of aging whose functional decrements may reflect a core mechanism of aging itself (Rollo, 2009)
Methylcobalamin formulations also typically appear red, with shade variations primarily related to concentration and excipients rather than the form of B12 used
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