title: Letter: Sterility after vasectomy.
mesh_terms: D000166:Acridines / Q000494:pharmacology; D000588:Amines / Q000494:pharmacology; D002465:Cell Movement; D006801:Humans; D008297:Male; D012661:Semen; D013094:Spermatozoa; D007507:Therapeutic Irrigation; D014659:Vasectomy
chemical_list: D000166:Acridines; D000588:Amines