title: Letter: Evidence for clustering of pyrimidine dimers on opposite strands of U.V.-irradiated bacteriophage DNA.
mesh_terms: D002499:Centrifugation, Density Gradient; D003090:Coliphages; D004267:DNA Viruses; D004279:DNA, Viral / Q000528:radiation effects*; D004720:Endonucleases; D011743:Pyrimidines / Q000528:radiation effects*; D011831:Radiation Genetics; D014466:Ultraviolet Rays
chemical_list: D004279:DNA, Viral; D011743:Pyrimidines; D004720:Endonucleases