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Feb 2021;96(2):304-313
A 20 mg total vial gives about 40 draws at 0.5 mg, 20 draws at 1 mg, or 10 draws at 2 mg
Hffken K et al
Sleep disturbances infibromyalgia: A meta-analysis of case-control studies
Weve come across online discussions where people complained about symptoms they attributed to vitamin B12 overdose, toxicity, or reactions to B12 shots
doi:10.1007/s00394-010-0119-6
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