title: Sperm ultrastructure as an indication of sterility.
mesh_terms: D000483:Alleles; D000818:Animals; D001369:Axons; D002417:Cattle; D003272:Contraceptive Agents, Male; D004822:Epididymis / Q000033:anatomy & histology; D006801:Humans; D007248:Infertility, Male / Q000175:diagnosis*; D008297:Male; D051379:Mice; D008854:Microscopy, Electron; D013077:Sperm Head / Q000648:ultrastructure; D013081:Sperm Motility / Q000187:drug effects; D013082:Sperm Tail / Q000648:ultrastructure; D013094:Spermatozoa / Q000648:ultrastructure*; D013737:Testis / Q000033:anatomy & histology
chemical_list: D003272:Contraceptive Agents, Male