title: A study of the conversion of isotopic nicotinic acid to N-methylnicotinamide.
mesh_terms: D006801:Humans; D009525:Niacin; D009536:Niacinamide / Q000031:analogs & derivatives; D009539:Nicotinic Acids
chemical_list: D009539:Nicotinic Acids; D009536:Niacinamide; D009525:Niacin; C008472:N-methylnicotinamide