title: Evaluation of two vitamin B12 assay kits and L. leichmannii bioassay.
mesh_terms: D000704:Analysis of Variance; D001681:Biological Assay; D005069:Evaluation Studies as Topic; D006801:Humans; D007778:Lactobacillus / Q000378:metabolism; D008722:Methods; D013997:Time Factors; D014805:Vitamin B 12 / Q000097:blood* / Q000378:metabolism
chemical_list: D014805:Vitamin B 12