title: Gamma-radiation of heart valves at 4 degrees C; a comparative study using techniques of histochemistry and electron and light microscopy.
mesh_terms: D000818:Animals; D001021:Aortic Valve / Q000032:analysis / Q000528:radiation effects* / Q000637:transplantation; D005612:Freeze Drying; D005615:Freezing; D006025:Glycosaminoglycans / Q000032:analysis; D006651:Histocytochemistry; D007783:Lactones / Q000494:pharmacology; D008722:Methods; D008854:Microscopy, Electron; D011830:Radiation Effects; D013242:Sterilization; D013552:Swine; D014021:Tissue Preservation
chemical_list: D006025:Glycosaminoglycans; D007783:Lactones