title: Development of simulatenous resistance in Ostertagia circumcincta to thiabendazole, morantel tartrate and levamisole.
mesh_terms: D000818:Animals; D004351:Drug Resistance; D007978:Levamisole / Q000494:pharmacology*; D009015:Morantel / Q000494:pharmacology*; D010029:Ostertagiasis / Q000469:parasitology; D011743:Pyrimidines / Q000494:pharmacology*; D012641:Selection, Genetic; D012756:Sheep; D013827:Thiabendazole / Q000494:pharmacology*; D014251:Trichostrongyloidea / Q000187:drug effects*
chemical_list: D011743:Pyrimidines; D007978:Levamisole; D009015:Morantel; D013827:Thiabendazole