A note on the vitamin B12 activity of oral liver extract.
D045728:Corrinoids; D006801:Humans; D008099:Liver; D008110:Liver Extracts; D014805:Vitamin B 12; D014803:Vitamin B Complex
D045728:Corrinoids; D008110:Liver Extracts; D014803:Vitamin B Complex; D014805:Vitamin B 12
LIVER; VITAMIN B12