title: Correspondence: Effect of liver fluke on wool production in Welsh mountain sheep.
mesh_terms: D000818:Animals; D005260:Female; D012756:Sheep; D012757:Sheep Diseases / Q000503:physiopathology*; D014201:Trematode Infections / Q000503:physiopathology / Q000662:veterinary*; D014852:Wales; D014935:Wool / Q000254:growth & development*