title: Evidence against a direct carcinogenic effect of x-rays in vitro.
mesh_terms: D000818:Animals; D002460:Cell Line; D002470:Cell Survival; D002471:Cell Transformation, Neoplastic; D005354:Fibrosarcoma / Q000209:etiology*; D051379:Mice; D008810:Mice, Inbred C57BL; D008808:Mice, Inbred CBA; D009381:Neoplasms, Radiation-Induced; D011829:Radiation Dosage; D013154:Spleen