James Campbell Todd, A Manual of Clinical Diagnosis
“ The rare and rapidly fatal anemia which has been described under the name of aplastic anemia is probably a variety of pernicious anemia. Absence of any attempt at blood regeneration explains the marked difference in the blood picture. Red corpuscles and hemoglobin are rapidly diminished to an extreme degree. The color index is normal or low. The leukocyte count is normal or low, with relative increase of lymphocytes. Stained smears show only slight variations in size, shape, and staining properties of the red cells. ”
