No abstract available
Publication types
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Comparative Study
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Research Support, N.I.H., Extramural
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Research Support, Non-U.S. Gov't
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Twin Study
MeSH terms
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Adult
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Back Pain / diagnosis*
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Back Pain / etiology
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Cohort Studies
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Cross-Sectional Studies / methods
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Diseases in Twins / diagnosis*
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Diseases in Twins / etiology
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Humans
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Male
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Middle Aged
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Risk Factors
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Severity of Illness Index*
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Sex Factors
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Twins, Dizygotic
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Twins, Monozygotic