title: Studies of the structure of the head of boar spermatozoa from the epididymis.
mesh_terms: D000818:Animals; D004822:Epididymis / Q000502:physiology*; D006652:Histological Techniques; D008297:Male; D008854:Microscopy, Electron; D013091:Spermatogenesis; D013094:Spermatozoa / Q000166:cytology*; D013552:Swine