Overview, Bone Marrow Failure Syndromes, and Pure Red Cell Aplasia 5 Myeloproliferative Neoplasms: Chronic Myeloid Leukemia, Essential Thrombocythemia, and Primary Myelofibrosis 5 Eosinophilia and Hypereosinophilic Syndrome, Mastocytosis, and Myelodysplastic Syndromes 5 Acute Leukemias — Acute Myeloid Leukemia and Acute Lymphoblastic Leukemia 5