title: A parametric method for estimation of dose-modifying factors: low-dose extrapolation limit.
mesh_terms: D002470:Cell Survival / Q000528:radiation effects; D003037:Cobalt Radioisotopes; D004307:Dose-Response Relationship, Radiation; D005214:Fast Neutrons; D011879:Radiotherapy Dosage; D011882:Radiotherapy, High-Energy; D012062:Relative Biological Effectiveness
chemical_list: D003037:Cobalt Radioisotopes