ELLINGER, P Tryptophane as precursor of nicotinamide in mammals. [electronic resource] - Nature Nov 1947 - 675 p. digital Publication Type: Journal Article ISSN: 0028-0836 Standard No.: 10.1038/160675b0 doi Subjects--Topical Terms: AnimalsMammalsNiacinNiacinamideNicotinic AcidsTryptophan