title: Effects of split doses of x rays or neutrons on lung tumor formation in RFM mice.
mesh_terms: D000236:Adenoma / Q000209:etiology*; D000818:Animals; D004307:Dose-Response Relationship, Radiation; D005260:Female; D005856:Germ-Free Life; D008175:Lung Neoplasms / Q000209:etiology*; D051379:Mice; D009381:Neoplasms, Radiation-Induced; D009502:Neutrons; D013997:Time Factors; D014965:X-Rays