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Lumbar Vertebrae
Intervertebral Disk
Intervertebral Disk Degeneration
Monozygotic Twins
Dizygotic Twins
Magnetic Resonance Imaging
Cohort Studies
Risk Factors
Bone Density
Multivariate Analysis
Finland
Intervertebral Disk Displacement
Back Pain
Spinal Diseases
Low Back Pain
Diseases in Twins
Occupational Diseases
Exercise
Life Style
Genetic Predisposition to Disease
Co-Publications
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