Folate: up to 1mg IV/IM or PO daily
Maintenance: 0.4mg/day PO (non-pregnant/lactating) or 0.8mg/day PO (pregnant or lactating)
Maintenance: 0.4mg/day PO (non-pregnant/lactating) or 0.8mg/day PO (pregnant or lactating)
Vitamin B9 deficiency
Hemorrhage
Vitamin B7 deficiency
Hereditary
Vitamin B12 deficiency
Acquired
Vitamin E deficiency
Microangiopathic Hemolytic Anemia 