title: Oxygen enhancement ratios in Hela cells irradiated with californium and radium sources.
mesh_terms: D002142:Californium; D004735:Energy Transfer; D006367:HeLa Cells / Q000528:radiation effects*; D009502:Neutrons; D010100:Oxygen; D011829:Radiation Dosage; D011830:Radiation Effects; D011883:Radium
chemical_list: D002142:Californium; D010100:Oxygen; D011883:Radium