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Any volume from 1 mL to 5 mL works: less water gives a stronger solution and a smaller draw
Cold storage slows the slow breakdown of benzyl alcohol over time and keeps the preservative effective longer
If you are not able to have B12 injections, you may be suitable for treatment with B12 tablets or other forms of B12 supplements
The inclusion and exclusion criteria were defined in direct accordance with the PICOS framework
The intensive early protocol uses injection for maximum initial impact
Oral vitamins must get broken down by the GI tract (through the stomach, and intestines) and then go through the liver for metabolizing
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