TY - CHAP M1 - Book, Section TI - Aplastic Anemia: Acquired and Inherited A1 - Lichtman, Marshall A. A1 - Kaushansky, Kenneth A1 - Prchal, Josef T. A1 - Levi, Marcel M. A1 - Burns, Linda J. A1 - Linch, David C. PY - 2022 T2 - Williams Manual of Hematology, 10e AB - Aplastic anemia is marked by pancytopenia with markedly hypocellular marrow and normal marrow cell cytogenetics.Incidence worldwide is 2 to 5 cases per million population per year and 5 to 12 cases per million population per year in the United States (and in other industrialized countries). Incidence is approximately twice as high in Asian countries.Peak incidences are between ages 15 and 25 and 65 and 69 years.The definitions for spectrum of severity of aplastic anemia are shown in Table 3–1. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/24 UR - hemonc.mhmedical.com/content.aspx?aid=1189332721 ER -