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Walk the Even Hospital Database by book and chapter — the raw source passages that ground Ask, DDx, and the rest.

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©2013 UpToDate ® Print Email Bone marrow biopsy in aplastic anemia Bone marrow biopsy in aplastic anemia. There are virtually no hematopoietic cells, and the marrow space consists of fat and stroma. Courtesy of Stanley L Schrier, MD. Normal bone marrow biopsy at low power Low power view of a normal bone marrow biopsy. The overall cellularity is between 30 and 70 percent, with the remainder of the space being occupied by fat and stroma. Courtesy of Stanley L Schrier, MD.