title: Cytochemistry of sperm histones in three cartilaginous fish.
mesh_terms: D000818:Animals; D005399:Fishes / Q000378:metabolism*; D006651:Histocytochemistry; D006657:Histones / Q000032:analysis*; D008297:Male; D013094:Spermatozoa / Q000032:analysis*
chemical_list: D006657:Histones