title: Existence of a spermatogonial chalone in the rat testis.
mesh_terms: D000818:Animals; D001345:Autoradiography; D001681:Biological Assay; D004247:DNA / Q000096:biosynthesis; D006131:Growth Inhibitors / Q000302:isolation & purification* / Q000494:pharmacology; D007700:Kinetics; D008297:Male; D008938:Mitosis / Q000187:drug effects / Q000528:radiation effects; D011830:Radiation Effects; D051381:Rats; D013094:Spermatozoa / Q000166:cytology* / Q000187:drug effects / Q000378:metabolism; D013737:Testis / Q000032:analysis* / Q000378:metabolism / Q000528:radiation effects; D013936:Thymidine / Q000378:metabolism; D014316:Tritium
chemical_list: D006131:Growth Inhibitors; D014316:Tritium; D004247:DNA; D013936:Thymidine