No abstract available
Publication types
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Comment
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Comparative Study
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Letter
MeSH terms
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Adult
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Amenorrhea / epidemiology*
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Case-Control Studies
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Feeding and Eating Disorders / epidemiology*
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Female
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Humans
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Life Style
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Osteoporosis / epidemiology*
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Prevalence
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Risk Factors
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Sports / statistics & numerical data*
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Syndrome
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United States / epidemiology