title: Determination of RBE values for fast neutrons and negative phi-mesons using frozen HeLa cells.
mesh_terms: D002470:Cell Survival / Q000528:radiation effects; D004307:Dose-Response Relationship, Radiation; D004601:Elementary Particles; D005615:Freezing; D006367:HeLa Cells / Q000528:radiation effects*; D009502:Neutrons; D009686:Nuclear Physics; D011827:Radiation; D011830:Radiation Effects