B VITAMINS and tryptophan metabolism.
D006801:Humans; D009525:Niacin; D009539:Nicotinic Acids; D014364:Tryptophan; D014803:Vitamin B Complex; D014815:Vitamins
D009539:Nicotinic Acids; D014815:Vitamins; D014803:Vitamin B Complex; D009525:Niacin; D014364:Tryptophan
NICOTINIC ACID; TRYPTOPHAN