The migration of cells to the thymus.
D000818:Animals; D004247:DNA / Q000032:analysis* / Q000096:biosynthesis*; D008214:Lymphocytes; D008297:Male; D051379:Mice; D011830:Radiation Effects; D011832:Radiation Injuries; D013053:Spectrophotometry; D013936:Thymidine / Q000494:pharmacology*; D013950:Thymus Gland / Q000378:metabolism* / Q000528:radiation effects*; D014316:Tritium
D014316:Tritium; D004247:DNA; D013936:Thymidine