title: Calcification in the human renal papilla: an electron-microscope study.
mesh_terms: D000368:Aged; D001485:Basement Membrane; D002118:Calcium / Q000032:analysis; D003238:Connective Tissue / Q000473:pathology; D005260:Female; D006651:Histocytochemistry; D006801:Humans; D006934:Hypercalcemia / Q000473:pathology; D007668:Kidney / Q000473:pathology; D007669:Kidney Calculi / Q000209:etiology; D007684:Kidney Tubules / Q000473:pathology; D008297:Male; D008854:Microscopy, Electron; D009392:Nephrectomy; D009397:Nephrocalcinosis / Q000473:pathology*
chemical_list: D002118:Calcium