Letter: Economics of anthelmintic control of helminthiasis.
D000818:Animals; D000871:Anthelmintics / Q000627:therapeutic use*; D001315:Australia; D004467:Economics; D006373:Helminthiasis / Q000517:prevention & control; D006374:Helminthiasis, Animal; D012756:Sheep; D012757:Sheep Diseases / Q000517:prevention & control*
D000871:Anthelmintics