pernicious anemia is treated with injections of vitamin b12 because Did I miss anything? life threatening chronic autoimmune disease. And no, it's NOT just a deficiency and/or anemia. deficiency will affect EVERY SINGLE PART YOUR BODY Pernicious Anemia Treatment Guidelines: Don't
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It's generally safe, but it should always be taken under medical supervision

I have been searching around all day every day, talked to many cancer scientists (I work with cancer scientists) and consulted many doctors, Ive been reading and searching for more than a year, collected piles of research documents

4 How is pernicious anemia diagnosed

Shelf life is supplier-specific and formulation-dependent