No abstract available
MeSH terms
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Adolescent
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Adult
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Aged
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Arthritis, Juvenile / etiology
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Arthritis, Juvenile / genetics
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Arthritis, Rheumatoid / etiology
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Arthritis, Rheumatoid / genetics*
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Child
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Diseases in Twins*
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Female
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Humans
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Latex Fixation Tests
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Middle Aged
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Personality
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Psychology, Social
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Psychopathology
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Rheumatoid Factor / analysis
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Sex Factors
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Stress, Physiological / complications