Epidermal lysosomes and ultraviolet light.
D000818:Animals; D003593:Cytoplasm / Q000528:radiation effects / Q000648:ultrastructure; D004847:Epithelial Cells; D004848:Epithelium / Q000648:ultrastructure*; D006168:Guinea Pigs; D006651:Histocytochemistry; D008247:Lysosomes / Q000528:radiation effects* / Q000648:ultrastructure; D008854:Microscopy, Electron; D011830:Radiation Effects; D012867:Skin / Q000528:radiation effects / Q000648:ultrastructure; D013911:Thorium Dioxide; D014466:Ultraviolet Rays
D013911:Thorium Dioxide