title: Structure and ultrastructure of the liver in aged persons.
mesh_terms: D000367:Age Factors; D000368:Aged; D000375:Aging; D001706:Biopsy; D004721:Endoplasmic Reticulum; D006801:Humans; D008099:Liver / Q000166:cytology* / Q000473:pathology / Q000502:physiology; D008854:Microscopy, Electron; D008930:Mitochondria, Liver