This article discusses the medical condition. For the fern genus, see Anemia (fern) Anemia (AmE)) or anaemia (BrE), from the Greek meaning "without blood", is a deficiency of red blood cells and/or hemoglobin. This results in a reduced ability of blood to transfer oxygen to the tissues, causing hypoxia; since all human cells depend on oxygen for survival, varying degrees of anemia can have a wide range of clinical consequences. Hemoglobin (the oxygen-carrying protein in the red blood ce ...
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