title: The ultrastructure of male germ cells in rats x-irradiated at birth.
mesh_terms: D000818:Animals; D003585:Cell Biology; D008297:Male; D008854:Microscopy, Electron; D011831:Radiation Genetics; D051381:Rats; D013094:Spermatozoa / Q000528:radiation effects*; D013737:Testis / Q000166:cytology*