title: Effects of camptothecin on the breakage and repair of DNA during the cell cycle.
mesh_terms: D002166:Camptothecin / Q000494:pharmacology*; D004260:DNA Repair / Q000187:drug effects*; D004261:DNA Replication; D006367:HeLa Cells / Q000187:drug effects*; D006801:Humans; D008938:Mitosis / Q000187:drug effects*
chemical_list: D002166:Camptothecin