Folic acid.
D000740:Anemia / Q000188:drug therapy / Q000451:nursing; D005260:Female; D005492:Folic Acid / Q000009:adverse effects / Q000627:therapeutic use*; D006397:Hematinics / Q000009:adverse effects / Q000627:therapeutic use*; D006801:Humans; D009436:Neural Tube Defects / Q000517:prevention & control; D016742:Preconception Care; D011247:Pregnancy; D014803:Vitamin B Complex / Q000009:adverse effects / Q000627:therapeutic use*
D006397:Hematinics; D014803:Vitamin B Complex; D005492:Folic Acid