title: Aspermatogenesis in a paralyzed opossum (Didelphis virginiana).
mesh_terms: D000818:Animals; D008297:Male; D009893:Opossums; D010243:Paralysis / Q000473:pathology / Q000503:physiopathology / Q000662:veterinary*; D013091:Spermatogenesis; D013737:Testis / Q000294:innervation* / Q000473:pathology