title: Functional and structural changes in ram testis and epididymis following ligation of vas-deferens.
mesh_terms: D000728:Androgens / Q000097:blood; D000818:Animals; D004822:Epididymis / Q000648:ultrastructure*; D007985:Leydig Cells / Q000648:ultrastructure; D008026:Ligation; D008297:Male; D008854:Microscopy, Electron; D012756:Sheep; D013094:Spermatozoa; D013737:Testis / Q000503:physiopathology*; D014659:Vasectomy
chemical_list: D000728:Androgens