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J Neurochem 76:498508 Chen Y, Liu L (2012) Modern methods for delivery of drugs across the blood-brain barrier
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The effects of vitamin B12 supplementation in pregnancy and postpartum on growth and neurodevelopment in early childhood: Study Protocol for a Randomized Placebo Controlled Trial
Your B12 dosage is determined by your doctor based on your age, blood levels, and general health history
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