title: Perturbations in precursor incorporation into DNA of x-irradiated HeLa S3 cells.
mesh_terms: D001345:Autoradiography; D002247:Carbon Isotopes; D046508:Culture Techniques; D003597:Cytosine Nucleotides / Q000378:metabolism; D004247:DNA / Q000096:biosynthesis*; D004261:DNA Replication / Q000528:radiation effects*; D005467:Floxuridine; D006367:HeLa Cells / Q000378:metabolism / Q000528:radiation effects*; D006918:Hydroxyurea; D007700:Kinetics; D008938:Mitosis / Q000528:radiation effects*; D011830:Radiation Effects; D013936:Thymidine / Q000378:metabolism; D013997:Time Factors; D014316:Tritium
chemical_list: D002247:Carbon Isotopes; D003597:Cytosine Nucleotides; D005467:Floxuridine; D014316:Tritium; D004247:DNA; D013936:Thymidine; D006918:Hydroxyurea