title: Strand breakage in rat liver DNA and its repair following administration of cyclic nitrosamines.
mesh_terms: D000478:Alkylation; D000818:Animals; D002499:Centrifugation, Density Gradient; D004260:DNA Repair; D004305:Dose-Response Relationship, Drug; D006498:Hepatectomy; D008099:Liver / Q000187:drug effects*; D008115:Liver Regeneration; D008297:Male; D009025:Morpholines / Q000494:pharmacology; D009602:Nitrosamines / Q000378:metabolism / Q000494:pharmacology*; D010879:Piperazines / Q000494:pharmacology; D010880:Piperidines / Q000494:pharmacology; D051381:Rats
chemical_list: D009025:Morpholines; D009602:Nitrosamines; D010879:Piperazines; D010880:Piperidines