title: The change of the ground substance of the aorta in syphilitic aortitis.
mesh_terms: D000368:Aged; D001011:Aorta / Q000473:pathology*; D002807:Chondroitin / Q000032:analysis; D003238:Connective Tissue / Q000473:pathology*; D005260:Female; D006025:Glycosaminoglycans / Q000032:analysis*; D006493:Heparin / Q000032:analysis; D006651:Histocytochemistry; D006801:Humans; D006820:Hyaluronic Acid / Q000032:analysis; D008297:Male; D008722:Methods; D008875:Middle Aged; D008970:Molecular Weight; D013589:Syphilis, Cardiovascular / Q000473:pathology*
chemical_list: D006025:Glycosaminoglycans; D006820:Hyaluronic Acid; D006493:Heparin; D002807:Chondroitin