Connective Tissue DiseasesMixed Connective Tissue DiseaseConnective TissueScleroderma, SystemicAntibodies, AntinuclearRaynaud DiseaseCollagen DiseasesLupus Erythematosus, SystemicConnective Tissue Growth FactorAutoantibodiesSkin and Connective Tissue DiseasesSjogren's SyndromeLung Diseases, InterstitialsnRNP Core ProteinsCREST SyndromeDermatomyositisConnective Tissue CellsHypertension, PulmonaryRheumatic DiseasesBreast ImplantsMyositisArthritis, RheumatoidRibonucleoprotein, U1 Small NuclearAutoantigensPolymyositisPolyarteritis NodosaScleroderma, LocalizedAutoimmune DiseasesMucinosesRibonucleoproteins, Small NuclearRibonucleoproteinsVasculitisNailsSiliconesIdiopathic Interstitial PneumoniasMarfan SyndromePrednisolonePulmonary FibrosisMicroscopic AngioscopyToesSurgery, PlasticWegener GranulomatosisArthritisRNA, Small CytoplasmicEnzyme-Linked Immunosorbent AssayHydroxychloroquinePericardial EffusionRheumatoid NoduleRheumatoid FactorCranial Nerve DiseasesImmunoglobulin GCounterimmunoelectrophoresisMicroscopic PolyangiitisFluorescent Antibody TechniqueCryptogenic Organizing PneumoniaEsophageal Motility DisordersFingersFatal OutcomeScleritisHLA-DR4 AntigenNucleoproteinsBiological MarkersAntibody SpecificityAntigens, NuclearSkinRespiratory Function TestsFibroblastsRetrospective StudiesSkin DiseasesImmediate-Early ProteinsCollagenBehcet SyndromeCardiac TamponadeImmunosuppressive AgentsMethylprednisoloneImmunoblottingIntercellular Signaling Peptides and ProteinsTomography, X-Ray Computed