Rodents, Pathogenesis, neutrophils, lung, autoimmunity, Lung Diseases, Interstitial - etiology, DNA - blood, Polymyositis - immunology, Cellular Structures - immunology, Antibodies, Antinuclear - blood, Deoxyribonuclease I - blood, Dermatomyositis - immunology, Interstitial - immunology, Cellular Structures - metabolism, Dermatomyositis - complications, Poly...