title: Letter: Survival after x-irradiation of extremely hypoxic human cells cultured in vitro.
mesh_terms: D002470:Cell Survival / Q000528:radiation effects; D002478:Cells, Cultured / Q000528:radiation effects*; D004307:Dose-Response Relationship, Radiation; D006801:Humans; D066298:In Vitro Techniques; D010100:Oxygen; D011830:Radiation Effects; D014965:X-Rays
chemical_list: D010100:Oxygen