title: Ultrastructural study of calcification of human aortic valve.
mesh_terms: D000328:Adult; D000368:Aged; D000375:Aging; D001021:Aortic Valve / Q000473:pathology*; D001344:Autopsy; D002114:Calcinosis / Q000473:pathology*; D002118:Calcium / Q000032:analysis; D003094:Collagen / Q000032:analysis; D003460:Crystallization; D003593:Cytoplasm / Q000032:analysis; D003594:Cytoplasmic Granules; D004721:Endoplasmic Reticulum; D005347:Fibroblasts / Q000032:analysis*; D005615:Freezing; D006651:Histocytochemistry; D006801:Humans; D008055:Lipids / Q000032:analysis; D008264:Macrophages; D008854:Microscopy, Electron; D008875:Middle Aged; D012270:Ribosomes; D013997:Time Factors
chemical_list: D008055:Lipids; D003094:Collagen; D002118:Calcium