title: Ultraviolet radiation affects the immune system.
mesh_terms: D000818:Animals; D004247:DNA / Q000528:radiation effects; D003877:Dermatitis, Contact / Q000628:therapy; D006801:Humans; D007109:Immunity / Q000528:radiation effects*; D007801:Langerhans Cells / Q000276:immunology / Q000528:radiation effects; D008214:Lymphocytes / Q000276:immunology / Q000528:radiation effects; D010777:Photochemistry; D012867:Skin / Q000276:immunology / Q000528:radiation effects; D014466:Ultraviolet Rays; D014467:Ultraviolet Therapy
chemical_list: D004247:DNA