title: Differences in the oxygen-enhancement ratio for double-strand breaks in irradiated DNA according to the method of analysis.
mesh_terms: D000388:Air; D002499:Centrifugation, Density Gradient; D003037:Cobalt Radioisotopes; D003090:Coliphages / Q000302:isolation & purification / Q000528:radiation effects*; D004267:DNA Viruses / Q000302:isolation & purification / Q000528:radiation effects*; D004279:DNA, Viral / Q000528:radiation effects*; D005720:Gamma Rays; D009584:Nitrogen; D010100:Oxygen / Q000494:pharmacology*; D011827:Radiation; D011830:Radiation Effects; D014461:Ultracentrifugation
chemical_list: D003037:Cobalt Radioisotopes; D004279:DNA, Viral; D009584:Nitrogen; D010100:Oxygen