title: Scanning electron microscopy of boar spermatozoa before and after frozen-thawed treatment.
mesh_terms: D000818:Animals; D005615:Freezing; D005990:Glycerol; D008297:Male; D008855:Microscopy, Electron, Scanning; D013048:Specimen Handling; D013094:Spermatozoa / Q000648:ultrastructure*; D013552:Swine
chemical_list: D005990:Glycerol