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It has no amino-acid chain or peptide bonds
References Heffernan M, Summers RJ, Thorburn A, Ogru E, Gianello R, Jiang WJ, Ng FM
Pernicious anemia, a condition caused by a vitamin B12 deficiency, often goes unnoticed, leaving people feeling sluggish, weak, or even confused
On the other hand, for subcutaneous injection, you can inject it on the back of your upper arm, lower abdomen, and front of the thighs
Those whove tried oral supplements without experiencing symptom improvement should consider injection therapy
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