title: More chapters in the bracken saga.
mesh_terms: D000231:Adenocarcinoma, Papillary / Q000139:chemically induced; D000236:Adenoma / Q000139:chemically induced; D000818:Animals; D002273:Carcinogens / Q000032:analysis; D002417:Cattle; D006168:Guinea Pigs; D007078:Ileal Neoplasms / Q000139:chemically induced; D051379:Mice; D009153:Mutagens / Q000032:analysis; D010212:Papilloma / Q000139:chemically induced; D010947:Plants, Toxic / Q000032:analysis; D051381:Rats; D012486:Salmonella typhimurium / Q000187:drug effects; D001749:Urinary Bladder Neoplasms / Q000139:chemically induced
chemical_list: D002273:Carcinogens; D009153:Mutagens