title: Development of the early lesions in experimental enzootic pneumonia of pigs: an ultrastructural and histological study.
mesh_terms: D000818:Animals; D004487:Edema / Q000473:pathology; D006965:Hyperplasia / Q000473:pathology; D007962:Leukocytes; D008214:Lymphocytes; D008221:Lymphoid Tissue / Q000473:pathology; D008264:Macrophages; D008854:Microscopy, Electron; D009175:Mycoplasma Infections / Q000473:pathology / Q000662:veterinary*; D011014:Pneumonia / Q000473:pathology / Q000662:veterinary*; D013552:Swine; D013553:Swine Diseases / Q000473:pathology*; D013997:Time Factors