chronic lymphocetic leukemiachronic myelomonocytic leukemiachronic lymphoma leukemiachronic myelogenous leukemiachronic lymphocytic leukemiachronic eosinophilic leukemiachronic myeloid leukemia treatmentschronic leukemia symptomchronic lymphoid leukemiatreating chronic leukemiachronic myelogenous leukemia prognosischronic lymphocytic leukemia diagnosis