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