LINKS:
https://www.b12-vitamin.com/holo-tc/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3127504/
http://healthyeating.sfgate.com/high-vitamin-b12-mean-9057.html
1. High B12 <-PUB MED The pathophysiology of elevated vitamin B12 in clinical practice.
2. B 12
3. another
4. https://vimeo.com/41334073 video IF
5. intrinsic factor B12 absorption
6.
http://www.b12.com methylmalonic acid (MMA)
this is the test for intracellular absorption ref: http://www.b12.com/
8. https://nutritionfacts.org/video/new-vitamin-b12-test/ Holotranscabalamin TEST
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3215392/ Holotranscabalamin TEST