Stock Photo - Illustration of vitamin B12 deficiency anaemia. It is a macrocytic anaemia (abnormally large red corpuscles) due to a lack of folic acid (vitamin B9) or vitamin B12. It is megoblastic: presence in the marrow of abnormal erythroblasts (stem cells at the root of red corpuscles) called megaloblasts.

Stock Photo: Illustration of vitamin B12 deficiency anaemia. It is a macrocytic anaemia (abnormally large red corpuscles) due to a lack of folic acid (vitamin B9) or vitamin.

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