title: Effect of 1 MeV fast-neutron irradiation on spermatogonial proliferation in mice; influence of dose fractionation with different intervals.
mesh_terms: D000818:Animals; D005214:Fast Neutrons; D008297:Male; D051379:Mice; D008808:Mice, Inbred CBA; D009502:Neutrons; D011829:Radiation Dosage; D011830:Radiation Effects; D013094:Spermatozoa / Q000528:radiation effects*; D013737:Testis / Q000528:radiation effects; D013997:Time Factors