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Spontaneous Abortion
Musculoskeletal Abnormalities
Persian Gulf Syndrome
Digestive System Abnormalities
Pregnancy
Reproductive History
Maternal Age
Pregnancy Outcomes
Socioeconomic Factors
Cohort Studies
Retrospective Studies
Risk Factors
Paternal Age
Veterans
Military Personnel
Health Behavior
Questionnaires
Great Britain
Iraq
Public Health Informatics
Co-Publications
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