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The companies making and selling them are generally difficult to track down or not based in the U.S., which means American authorities have little recourse to enforce standards for quality or legality
He really becomes obsessed
At 500 mcg per dose, you get 30 doses from a single vial, which is outstanding economy
[1] [2] Blood levels of B12 may rise quickly following injection, though elevated blood levels do not immediately translate to symptom resolution
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