title: Seasonal incidence of enzootic pneumonia and its effect on the growth of lambs.
mesh_terms: D000818:Animals; D001835:Body Weight; D011014:Pneumonia / Q000453:epidemiology / Q000473:pathology / Q000662:veterinary*; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology* / Q000473:pathology