title: Cell proliferation and renewal in aging mice.
mesh_terms: D000375:Aging; D000818:Animals; D001345:Autoradiography; D002455:Cell Division; D003106:Colon / Q000166:cytology; D004247:DNA / Q000096:biosynthesis; D004423:Ear / Q000166:cytology; D004848:Epithelium / Q000378:metabolism; D004947:Esophagus / Q000166:cytology; D007684:Kidney Tubules / Q000166:cytology; D008297:Male; D051379:Mice; D012867:Skin / Q000166:cytology; D013936:Thymidine / Q000378:metabolism; D013997:Time Factors; D014059:Tongue / Q000166:cytology; D014316:Tritium
chemical_list: D014316:Tritium; D004247:DNA; D013936:Thymidine