Electron-microscope observations on bone marrows and lymph nodes of 16 patients with acute leukemia and 27 patients with various malignant blood diseases are reported. The approximate number of cells from the cases of acute leukemia which could be examined is reported. In a single instance of acute leukemia a group of virus-like bodies was found. Similar particles, however, have also been observed in several tissue cultures of a Chang strain from human liver.

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© 1960 by American Society of Hematology, Inc.
1960
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