title: Chromosome replication in aging human diploid fibroblasts.
mesh_terms: D001345:Autoradiography; D002470:Cell Survival; D002877:Chromosomes, Human / Q000502:physiology*; D002906:Chromosomes, Human, 6-12 and X; D004261:DNA Replication; D004171:Diploidy; D005347:Fibroblasts / Q000502:physiology; D006570:Heterochromatin / Q000502:physiology; D006801:Humans; D008297:Male
chemical_list: D006570:Heterochromatin