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sohag100 03-10-2020 06:50 PM

Repeated USMLE Questions Step 1- 312
 
A 62-year-old man complains of fatigue, progressive weakness and numbness of his arms and legs. Complete blood count shows decreased numbers of erythrocytes and increase in the mean cell volume.
Removal of which of these structures requires lifelong administration of the vitamin involved in this case?
A-Ascending colon
B-Gall bladder
C-Ileum
D-Left kidney
E-Tonsils
Answer


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