Xeroderma pigmentosum.
D002648:Child; D002675:Child, Preschool; D004261:DNA Replication / Q000528:radiation effects; D005260:Female; D006801:Humans; D011830:Radiation Effects; D013936:Thymidine / Q000378:metabolism; D014316:Tritium; D014466:Ultraviolet Rays; D014983:Xeroderma Pigmentosum / Q000209:etiology / Q000378:metabolism*
D014316:Tritium; D013936:Thymidine