Sheep ectoparasites in Wales.
Armstrong
Derek
D
Davies
Lynfa
L
D000818:Animals; D004478:Ectoparasitic Infestations / Q000453:epidemiology / Q000662:veterinary*; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology* / Q000209:etiology / Q000469:parasitology; D011795:Surveys and Questionnaires; D014852:Wales / Q000453:epidemiology