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  1. What are some possible causes of female infertility?

  2. How common is infertility? | NICHD - NICHD - Eunice Kennedy …

  3. Fertility Treatments for Females | NICHD - NICHD - Eunice …

  4. Infertility and Fertility | NICHD - NICHD - Eunice Kennedy Shriver ...

  5. How is infertility diagnosed? | NICHD - NICHD - Eunice Kennedy …

  6. How common is male infertility, and what are its causes?

  7. What are some possible causes of male infertility?

  8. What lifestyle and environmental factors may be involved with ...

  9. About Infertility and Fertility | NICHD - NICHD - Eunice Kennedy ...

  10. Infertility and Fertility - NICHD - Eunice Kennedy Shriver National ...