A method for the microbiological assay of vitamin B12.
D001681:Biological Assay; D045728:Corrinoids; D014805:Vitamin B 12; D014803:Vitamin B Complex; D014815:Vitamins
D045728:Corrinoids; D014815:Vitamins; D014803:Vitamin B Complex; D014805:Vitamin B 12
VITAMIN B