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Theyre for patients with very low levels of vitamin B12 or certain health issues
They aren't substitutes for one another they're tools matched to different mechanistic questions in metabolic research
Cut a slit in the lid that's wide enough for needles to fit through
Orders received after 1pm EST or on weekends are processed and shipped the next business day, so researchers can plan their experiments with predictable delivery schedules
Pull back the plunger just a little to make sure you have not hit a blood vessel
The flexibility of these preparations lets doctors adjust the dose as needed
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