B-vitamins and the biosyntheses of purines and pyrimidines.
D011687:Purines; D011743:Pyrimidines; D014803:Vitamin B Complex; D014815:Vitamins
D011687:Purines; D011743:Pyrimidines; D014815:Vitamins; D014803:Vitamin B Complex; C030985:purine
PURINES; PYRIMIDINES