Vitamin B12 content of calf thymus extract.
D000818:Animals; D001688:Biological Products; D002417:Cattle; D045728:Corrinoids; D013949:Thymus Extracts; D013950:Thymus Gland; D014805:Vitamin B 12
D001688:Biological Products; D045728:Corrinoids; D013949:Thymus Extracts; D014805:Vitamin B 12
THYMUS; VITAMIN B12