Musculoskeletal DiseasesArthritis, RheumatoidMusculoskeletal SystemArthritisRheumatic DiseasesOccupational DiseasesMusculoskeletal PainFibromyalgiaOsteoarthritisWork Capacity EvaluationRepublic of KoreaArthritis, ExperimentalSick LeaveArthritis, InfectiousBack PainOsteoporosisFinlandPrevalenceArthritis, JuvenileLong-Term CareCross-Sectional StudiesArthritis, PsoriaticQuestionnairesArthritis, ReactiveRisk FactorsMusculoskeletal DevelopmentHuman EngineeringMusculoskeletal Physiological PhenomenaMusculoskeletal AbnormalitiesJointsCumulative Trauma DisordersSynovial MembraneMusculoskeletal Physiological ProcessesRheumatologyPainComputer TerminalsSynovial FluidMuscle NeoplasmsNeck PainShoulder PainSynovitisArthritis, GoutyPain MeasurementRheumatoid FactorJoint DiseasesArthralgiaMice, Inbred DBAOccupational HealthUpper ExtremityWorkloadSeverity of Illness IndexShoulder