title: Ultraviolet light-induced sister chromatid exchanges in xeroderma pigmentosum and in Cockayne's syndrome lymphocyte cell lines.
mesh_terms: D002460:Cell Line; D002877:Chromosomes, Human; D003434:Crossing Over, Genetic / Q000528:radiation effects*; D006801:Humans; D008214:Lymphocytes / Q000528:radiation effects*; D009374:Neoplasms, Experimental / Q000235:genetics; D010787:Photosensitivity Disorders / Q000235:genetics*; D013577:Syndrome; D014466:Ultraviolet Rays; D014983:Xeroderma Pigmentosum / Q000235:genetics*