Musculoskeletal DiseasesMusculoskeletal SystemRheumatic DiseasesOccupational DiseasesMusculoskeletal PainFibromyalgiaWork Capacity EvaluationRepublic of KoreaOsteoarthritisSick LeaveBack PainOsteoporosisFinlandPrevalenceResearchArthritis, RheumatoidLong-Term CareCross-Sectional StudiesQuestionnairesRisk FactorsHuman EngineeringMusculoskeletal DevelopmentMusculoskeletal Physiological PhenomenaMusculoskeletal AbnormalitiesCumulative Trauma DisordersMusculoskeletal Physiological ProcessesResearch DesignComputer TerminalsResearch Support as TopicMuscle NeoplasmsPainEthics, ResearchNeck PainResearch PersonnelShoulder PainNursing ResearchRheumatologyOccupational HealthHealth Services ResearchWorkloadPain MeasurementUpper ExtremityTranslational Medical Research