Relation of vitamin B12 to the growth factor present in cow manure.
D000818:Animals; D002417:Cattle; D045728:Corrinoids; D005260:Female; D006801:Humans; D036341:Intercellular Signaling Peptides and Proteins; D008372:Manure; D014805:Vitamin B 12
D045728:Corrinoids; D036341:Intercellular Signaling Peptides and Proteins; D008372:Manure; D014805:Vitamin B 12