PolymyositisDermatomyositisMyositisLung Diseases, InterstitialAntibodiesAntibody SpecificityAntibodies, ViralAntibodies, MonoclonalAntibodies, BacterialHistidine-tRNA LigaseAutoantibodiesAntibody FormationAntibodies, NeutralizingAntibodies, AntinuclearMyositis, Inclusion BodyFluorescent Antibody TechniqueCystitis, InterstitialPrednisoloneAntibody AffinityInterstitial Cells of CajalConnective Tissue DiseasesMuscular DiseasesScleroderma, SystemicAntibodies, Anti-IdiotypicAutoimmune DiseasesParaneoplastic SyndromesBinding Sites, AntibodyMusclesBiopsyMuscle, SkeletalCreatine KinaseImmunosuppressive AgentsHIV AntibodiesPulmonary FibrosisEpitopesExtracellular FluidAntibodies, NeoplasmNervous System Autoimmune Disease, ExperimentalMediastinal EmphysemaAntibodies, ProtozoanMyoglobinuriaMixed Connective Tissue DiseaseFatal OutcomeImmunoglobulin GAdrenal Cortex HormonesMuscle WeaknessMuscular DystrophiesCross ReactionsImmunohistochemistryMolecular Sequence DataAutoantigens