Pain MeasurementPainPain ThresholdChronic PainPain ManagementCatastrophizationFibromyalgiaPain PerceptionShoulder PainMusculoskeletal PainPsychiatric Status Rating ScalesFacial PainConnectomeAnalgesiaAnalgesicsNociceptorsAnalgesics, OpioidReproducibility of ResultsHyperalgesiaPain, PostoperativePressureQuestionnairesLow Back PainChronic DiseaseBack PainSeverity of Illness IndexHot TemperatureBrief Psychiatric Rating ScaleAnalysis of VarianceNeck PainDepressionPsychometricsPain, IntractableAnxietyAbdominal PainMagnetic Resonance ImagingTreatment OutcomePelvic PainAcute PainPredictive Value of TestsDisability EvaluationDouble-Blind MethodObserver VariationTime FactorsQuality of LifeProspective StudiesPain, ReferredDepressive Disorder, MajorParkinson Disease