title: Correspondance: Waddell WJ, Thresholds in chemical carcinogenesis: what are animal experiments telling us?
authors.forename: Makoto
authors.initials: M
authors.lastname: Enomoto
mesh_terms: D000818:Animals; D000830:Animals, Laboratory; D015197:Carcinogenicity Tests / Q000662:veterinary*; D002471:Cell Transformation, Neoplastic / Q000187:drug effects / Q000473:pathology*; D004305:Dose-Response Relationship, Drug; D020714:Maximum Tolerated Dose; D009374:Neoplasms, Experimental / Q000139:chemically induced* / Q000473:pathology; D036401:Toxicity Tests, Chronic / Q000662:veterinary*