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  1. Folic Acid and Pregnancy: How Much Do You Need? - Healthline

  2. Folic Acid: Facts for Clinicians | Folic Acid | CDC

  3. Folic acid for pregnancy: Sources, dosage, and uses - Medical News Today

  4. Folic Acid Supplementation for the Prevention of Neural Tube

  5. How and when to take folic acid - NHS

  6. Folic Acid Dosage Guide + Max Dose, Adjustments - Drugs.com

  7. Folic Acid | the American Pregnancy Association

  8. Folic Acid Benefits in Pregnancy - WebMD

  9. Folate (folic acid) - Mayo Clinic

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