title: Structural alterations in exposed and unexposed aged skin.
mesh_terms: D000328:Adult; D000368:Aged; D000375:Aging; D003238:Connective Tissue / Q000648:ultrastructure; D003593:Cytoplasm / Q000648:ultrastructure; D004817:Epidermis / Q000648:ultrastructure; D005347:Fibroblasts / Q000648:ultrastructure; D005542:Forearm / Q000648:ultrastructure; D006801:Humans; D008297:Male; D012867:Skin / Q000166:cytology / Q000648:ultrastructure*