No abstract available
Publication types
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Research Support, U.S. Gov't, Non-P.H.S.
MeSH terms
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Adult
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Cohort Studies
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Diseases in Twins
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Health Status
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Health Surveys
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Humans
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Male
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Middle Aged
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Registries
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Twin Studies as Topic / methods*
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Twin Studies as Topic / statistics & numerical data
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Twins / statistics & numerical data*
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United States
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Veterans / psychology
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Veterans / statistics & numerical data*
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Vietnam