title: Cellular senescence and DNA synthesis. Thymidine incorporation as a measure of population age in human diploid cells.
mesh_terms: D001345:Autoradiography; D002455:Cell Division; D002460:Cell Line; D002467:Cell Nucleus / Q000378:metabolism; D002470:Cell Survival; D003584:Cytological Techniques; D004247:DNA / Q000096:biosynthesis*; D004171:Diploidy; D006801:Humans; D007700:Kinetics; D008168:Lung / Q000196:embryology; D013936:Thymidine / Q000378:metabolism; D013997:Time Factors; D014316:Tritium
chemical_list: D014316:Tritium; D004247:DNA; D013936:Thymidine