FibromyalgiaNaltrexoneNarcotic AntagonistsPain MeasurementPainBalneologyReceptors, Opioid, muAlcoholismPain ThresholdOpioid-Related DisordersFatigue Syndrome, ChronicClimatotherapyFatigueNarcoticsReceptors, OpioidMorphineTaurinePain ManagementAnalgesics, OpioidCatastrophizationMethadyl AcetateTreatment OutcomeHeroin DependenceAnalgesicsAlcohol AbstinenceQuestionnairesQuality of LifeNalorphineDisulfiramNalbuphineTemperanceComplex Regional Pain SyndromesTrazodoneDelayed-Action PreparationsSubstance Withdrawal SyndromeBuprenorphineNaloxoneMusculoskeletal PainDouble-Blind MethodExercise TherapyMyofascial Pain SyndromesRheumatic DiseasesSleep DisordersTrigger PointsOpioid PeptidesBehavior, AddictiveHydrotherapyAmitriptylineSeverity of Illness IndexEthanolHydromorphoneChronic PainCognitive TherapyEndorphinsDepressionPhilosophy, MedicalPlacebosAffectHeroin