vitamin b12 site of injection Best Site: Administering B12 Shots How to Perform a Subcutaneous
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Dont be surprised if you dont see a trace of blood, says Foxx
Testing after a year catches any developing issues before they become problematic
doi: 10.1007/s11695-009-0008-3
Arch Pathol Lab Med 125:824827 PMID: 11371242 Smith RM, Monty KJ (1959) Vitamin B12 and propionate metabolism
