title: Placebo effect in the toxicity of anthelmintic drug trial.
mesh_terms: D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D009349:Nematode Infections / Q000188:drug therapy*; D010919:Placebos; D013827:Thiabendazole / Q000009:adverse effects / Q000633:toxicity*
chemical_list: D010919:Placebos; D013827:Thiabendazole