Ultraviolet light, tumors, and suppressor T cells.
D000818:Animals; D000951:Antigens, Neoplasm / Q000528:radiation effects*; D002471:Cell Transformation, Neoplastic / Q000528:radiation effects; D000939:Epitopes; D006084:Graft Rejection / Q000528:radiation effects; D000949:Histocompatibility Antigens Class II / Q000528:radiation effects; D006801:Humans; D007165:Immunosuppression Therapy; D051379:Mice; D009381:Neoplasms, Radiation-Induced / Q000276:immunology*; D012878:Skin Neoplasms / Q000209:etiology; D050378:T-Lymphocytes, Regulatory / Q000276:immunology*; D014466:Ultraviolet Rays
D000951:Antigens, Neoplasm; D000939:Epitopes; D000949:Histocompatibility Antigens Class II