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In those cases the unit math changes a 0.25 mg dose at 3 mg/ml is about 8 units, not 25
A deficiency of Vitamin B12 can lead to advanced anemia where the red cells are fewer in number but are larger than normal (macrocytic)
The study from Zheng et al
The answer, however, depends largely on what contraception you currently use, and getting this wrong can cause unnecessary hormonal disruption
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