Effect of x-irradiation on the absorption spectrum of purines and pyrimidines.
D011687:Purines; D011743:Pyrimidines; D014466:Ultraviolet Rays; D014965:X-Rays
D011687:Purines; D011743:Pyrimidines; C030985:purine
PURINES; PYRIMIDINES; ROENTGEN RAYS/effects; ULTRAVIOLET RAYS