title: Combined effects of drugs and radiation against tumor cells.
mesh_terms: D000818:Animals; D001932:Brain Neoplasms / Q000532:radiotherapy / Q000628:therapy*; D002470:Cell Survival; D002478:Cells, Cultured; D003131:Combined Modality Therapy; D004195:Disease Models, Animal; D005038:Ethylnitrosourea / Q000008:administration & dosage* / Q000031:analogs & derivatives; D006801:Humans; D009607:Nitrosourea Compounds / Q000008:administration & dosage*; D051381:Rats; D014965:X-Rays
chemical_list: D009607:Nitrosourea Compounds; C017139:1-(2-chloroethyl)-1-nitrosourea; D005038:Ethylnitrosourea