title: [Intensifying effect of repeated pretreatment for delayed neurotoxicity from organophosphorus insecticide cyanofenphos in hens].
mesh_terms: D000818:Animals; D002645:Chickens; D005260:Female; D007306:Insecticides / Q000008:administration & dosage / Q000633:toxicity*; D009420:Nervous System / Q000187:drug effects*; D009946:Organothiophosphorus Compounds / Q000008:administration & dosage / Q000633:toxicity*
chemical_list: D007306:Insecticides; D009946:Organothiophosphorus Compounds; C002488:cyanophenphos