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RADIATION BIOLOGY 



Fig. 17-1. Bone marrow of rabbit after total-body irradiation with 800 r of 200-kv 

 X rays. The marrow at 24 hours (A) shows mainly various stages of granulocyte 

 formation. The arrows point to debris, mostly of precursors of red blood cells. At 9 

 days (B) the marrow, completely depleted of hematopoietic cells, contains some fat 



