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Inadequate vitamin B12: not enough in diet (vegans), or poor access in stomach (lack of intrinsic factor) Can lead to central nervous system (CNS) damage as well as anemia. Other nutritional deficiencies: Copper, protein, others. Hemorrhagic anemia: Related to blood loss. Slow leak (ulcer, endometriosis) Bleeding out. Hemolytic anemia: ................
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