can b12 injections cause fever Vitamin B12: Symptoms, Dosage & Toxicity Risks An Essential Guide to Vitamin
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References Bottiglieri T

Some research has linked B vitamins with an increased risk of lung cancer

The injections are generally well-tolerated

What is it they are looking for additionally, if your symptoms have improved while on B12 injection treatment
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The procedure typically takes about 15 minutes to perform
