title: An investigation of ovine pneumonia in four herds from Central Norway. I. Prevalence of pneumonia and microbiological findings.
mesh_terms: D000818:Animals; D001835:Body Weight; D009664:Norway; D011014:Pneumonia / Q000382:microbiology*; D011019:Pneumonia, Mycoplasma / Q000382:microbiology / Q000662:veterinary; D012756:Sheep; D012757:Sheep Diseases / Q000453:epidemiology / Q000382:microbiology*