title: Chronic murine pneumonia of laboratory rats. Production and description of pulmonary-disease-free rats.
mesh_terms: D000818:Animals; D000830:Animals, Laboratory; D002751:Chlortetracycline / Q000008:administration & dosage*; D051379:Mice; D011014:Pneumonia / Q000517:prevention & control / Q000662:veterinary*; D051381:Rats; D012376:Rodent Diseases / Q000517:prevention & control*; D013416:Sulfamerazine / Q000008:administration & dosage*
chemical_list: D013416:Sulfamerazine; D002751:Chlortetracycline