title: Lesions in human spermatozoa after preservation in liquid nitrogen.
mesh_terms: D000176:Acrosin / Q000378:metabolism; D000818:Animals; D050260:Carbohydrate Metabolism; D002952:Citric Acid Cycle; D003451:Cryoprotective Agents; D004247:DNA / Q000378:metabolism; D004734:Energy Metabolism; D005407:Flagella / Q000648:ultrastructure; D005615:Freezing; D006801:Humans; D006821:Hyaluronoglucosaminidase / Q000378:metabolism; D008297:Male; D009584:Nitrogen; D011309:Preservation, Biological; D011817:Rabbits; D013048:Specimen Handling / Q000379:methods*; D013094:Spermatozoa / Q000378:metabolism / Q000648:ultrastructure*
chemical_list: D003451:Cryoprotective Agents; D004247:DNA; D006821:Hyaluronoglucosaminidase; D000176:Acrosin; D009584:Nitrogen