Underestimation of vitamin B 12 in serum by a microbiological method(Lactobacillus leichmannii): comparison with a radioisotopic method.
D001681:Biological Assay; D003036:Cobalt Isotopes; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007778:Lactobacillus / Q000378:metabolism*; D008722:Methods; D011485:Protein Binding; D014805:Vitamin B 12 / Q000097:blood*
D003036:Cobalt Isotopes; D014805:Vitamin B 12