Thymic lymphopoiesis and cell loss in newborn mice.
D000818:Animals; D000831:Animals, Newborn; D001345:Autoradiography; D006410:Hematopoiesis; D008214:Lymphocytes; D051379:Mice; D013936:Thymidine / Q000378:metabolism; D013950:Thymus Gland / Q000502:physiology*; D014316:Tritium
D014316:Tritium; D013936:Thymidine