Hematology provides diagnosis, evaluation and treatment for patients with a wide variety of blood disorders, primarily but not exclusively nonmalignant. Services include the evaluation and treatment of anemias, polycythemia, thrombocytopenia, thrombocytosis, leukopenia, leukocytosis, sickle cell disease and thalassemia, as well as of premalignant and malignant hematologic disorders, including myelodysplasia, leukemia, lymphoma, and multiple myeloma. The Clinical Coagulation Service provides diagnosis and treatment of bleeding disorders and syndromes with abnormal blood clotting as well as therapy with novel antithrombotic drugs. The faculty of the Divisions of Hematology are responsible for the operation of the Comprehensive Sickle Cell Center, the Clinical Coagulation Service, the Anticoagulation Clinic, and the High Risk Thrombosis Clinic. Faculty of this Division also serve as directors of the Hematology, Coagulation, Immunohematology, and Transfusion Hospital Laboratories.