title: DNA synthesis in the adult and ageing guinea-pig thymus.
mesh_terms: D000375:Aging; D000818:Animals; D000831:Animals, Newborn; D001284:Atrophy; D001345:Autoradiography; D004247:DNA / Q000096:biosynthesis*; D005260:Female; D006168:Guinea Pigs; D013936:Thymidine / Q000378:metabolism; D013950:Thymus Gland / Q000166:cytology / Q000378:metabolism*; D014316:Tritium
chemical_list: D014316:Tritium; D004247:DNA; D013936:Thymidine