Musculoskeletal DiseasesPrevalenceMusculoskeletal SystemRheumatic DiseasesOccupational DiseasesMusculoskeletal PainFibromyalgiaWork Capacity EvaluationRepublic of KoreaOsteoarthritisSick LeaveBack PainOsteoporosisFinlandCross-Sectional StudiesArthritis, RheumatoidLong-Term CareRisk FactorsQuestionnairesHuman EngineeringMusculoskeletal DevelopmentMusculoskeletal AbnormalitiesMusculoskeletal Physiological PhenomenaCumulative Trauma DisordersSpinal Nerve RootsComputer TerminalsNeck PainMuscle NeoplasmsPainShoulder PainRheumatologyOccupational HealthWorkloadTolloid-Like MetalloproteinasesUpper ExtremityShoulder