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  1. Vitamins and minerals - B vitamins and folic acid - NHS

  2. Vitamin B12 or folate deficiency anaemia - NHS

  3. About folic acid - NHS

  4. Vitamin B12 & folate anaemia - Illnesses & conditions - NHS inform

  5. Anaemia, vitamin B12 and folate deficiency - NHS 111 Wales

  6. Folic acid: vitamin that helps the body make healthy red blood cells - NHS

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