title: Induction of alkali labile links in cellular DNA by camptothecin.
mesh_terms: D000468:Alkalies; D002166:Camptothecin / Q000494:pharmacology*; D002247:Carbon Isotopes; D002499:Centrifugation, Density Gradient; D004260:DNA Repair; D004273:DNA, Neoplasm; D004277:DNA, Single-Stranded; D005559:Formamides / Q000494:pharmacology; D006367:HeLa Cells / Q000187:drug effects / Q000378:metabolism; D006863:Hydrogen-Ion Concentration; D009691:Nucleic Acid Denaturation; D013395:Sucrose
chemical_list: D000468:Alkalies; D002247:Carbon Isotopes; D004273:DNA, Neoplasm; D004277:DNA, Single-Stranded; D005559:Formamides; D013395:Sucrose; D002166:Camptothecin