CalcinosisCREST SyndromeSkin Diseases, MetabolicDermatomyositisHyperphosphatemiaN-AcetylgalactosaminyltransferasesSkin DiseasesScleroderma, SystemicFoot DiseasesCalciphylaxisJoint DiseasesTelangiectasisHyperostosis, Cortical, CongenitalSkin UlcerCalcium GluconateEyelid DiseasesNadroparinCalcium PyrophosphateNephrocalcinosisDurapatitealpha-2-HS-GlycoproteinBasal Ganglia DiseasesDermatologic AgentsPhosphatesRaynaud DiseaseFibroblast Growth FactorsCardiomyopathiesAntibodies, AntinuclearPhosphorusGlucuronidaseCentromereOsteopontinFingersBiopsySkinTomography, X-Ray ComputedMagnetic Resonance ImagingAutoantibodiesRetrospective StudiesFollow-Up StudiesTreatment OutcomeCalciumKidney Failure, Chronic