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But the side effect patterns differ between oral and injectable formulations, primarily due to route-specific factors and bioavailability differences
So, the B12 in the serum is OK, but in the brain, it is low
All of the vitamin B12 absorption calculations we use give doses that are sufficient regardless of whether food is consumed with the B12
Tabata et al., 1999) are illustrative for the pertinence of the poorly resolved problem, illustrative for the diversity of the carriers (i.e., hyaluronate gel carrier (Wang and Aspengberg, 1996), alginate/heparinsacharose microspheres and films (Yu et al., 1998), cellulose gel (Thorn and Aspenberg, 1993), defective form of Pseudomonas exotoxin (Siegall et al., 1994), fibrin adhesive carrier (Walter et al., 1996), biodegredable hydrogen gelatin (Tabata et al., 1999), natural coral, and collagen (Damien et al., 1993))
