title: Double label indices.
mesh_terms: D002247:Carbon Isotopes; D002452:Cell Count; D002455:Cell Division; D004247:DNA / Q000096:biosynthesis; D007553:Isotope Labeling; D007700:Kinetics; D008938:Mitosis; D008954:Models, Biological; D011336:Probability; D014316:Tritium
chemical_list: D002247:Carbon Isotopes; D014316:Tritium; D004247:DNA