Dr. Ayalew Tefferi is a hematologist/internist at Mayo Clinic. His research involves clinical and laboratory research in myeloid disorders including acute myeloid leukemia and chronic myeloid disorders. The latter include polycythemia vera, essential thrombocythemia, myelofibrosis with myeloid metaplasia, myelodysplastic syndrome, chronic myeloid leukemia, chronic neutrophilic leukemia, mast cell disease, hypereosinophilic syndrome, and other atypical myeloid disorders.