title: [The changes of epidermis with aging].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000375:Aging; D002452:Cell Count; D000078404:Epidermal Cells; D004817:Epidermis / Q000032:analysis; D006801:Humans; D008875:Middle Aged; D013107:Sphingolipids / Q000032:analysis
chemical_list: D013107:Sphingolipids