CheekMesocricetus9,10-Dimethyl-1,2-benzanthraceneMouth NeoplasmsMouth MucosaPhilodendronPoriaClerodendrumAmomumCricetinaeCarcinogensColonic PouchesAnticarcinogenic AgentsChemopreventionDimethylnitrosamineCarcinoma, Squamous CellFacial NeoplasmsNeoplasms, ExperimentalPhytotherapyProctocolectomy, RestorativePlant ExtractsDouglas' PouchLipid PeroxidationPouchitisCell Transformation, Neoplastic