PolymyositisDermatomyositisMyositisInflammationHistidine-tRNA LigaseLung Diseases, InterstitialMyositis, Inclusion BodyInflammation MediatorsPrednisoloneMuscular DiseasesAutoantibodiesParaneoplastic SyndromesCreatine KinaseMusclesAutoimmune DiseasesMuscle, SkeletalConnective Tissue DiseasesScleroderma, SystemicNervous System Autoimmune Disease, ExperimentalMyoglobinuriaImmunosuppressive AgentsBiopsyAntibodies, AntinuclearMuscle WeaknessMediastinal EmphysemaAdrenal Cortex HormonesMuscular DystrophiesMixed Connective Tissue Disease