Reactions of two populations of Haemonchus contortus to continual low dosages of phenothiazine of varying purity and particle size in sheep.
D000818:Animals; D000871:Anthelmintics / Q000627:therapeutic use*; D009349:Nematode Infections / Q000188:drug therapy* / Q000662:veterinary*; D010640:Phenothiazines / Q000627:therapeutic use*; D012756:Sheep; D012757:Sheep Diseases / Q000188:drug therapy*
D000871:Anthelmintics; D010640:Phenothiazines