title: Initial comparative response of experimental tumors to peak pions and x rays.
mesh_terms: D000230:Adenocarcinoma / Q000532:radiotherapy*; D000818:Animals; D003037:Cobalt Radioisotopes; D004307:Dose-Response Relationship, Radiation; D004601:Elementary Particles; D004735:Energy Transfer; D008325:Mammary Neoplasms, Experimental / Q000532:radiotherapy*; D051379:Mice; D008809:Mice, Inbred C3H; D009368:Neoplasm Transplantation; D011879:Radiotherapy Dosage; D011882:Radiotherapy, High-Energy; D014965:X-Rays
chemical_list: D003037:Cobalt Radioisotopes