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Description
Replacement therapy for vitamin B 12 deficiency: comparison between the submingual and oral route
In these patients some of the competitive binding chemiluminescence assays can be influenced by the presence of interfering antiIF antibodies, thereby providing spuriously elevated serum cobalamin concentrations, as noted earlier

There is no single right answer that applies to everyone at every phase

doi:10.3390/ijms19071987 Pollard JD, Quan S, Kang T, Koch RJ

Gastrointestinal permeability in celiac disease [1]

Drink plenty of water after your injection to help your body metabolize and absorb the B12 effectively