Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the stages of Chronic Myelogenous Leukemia ?
    ### Response:
    Key Points
                    - After chronic myelogenous leukemia has been diagnosed, tests are done to find out if the cancer has spread.    - Chronic myelogenous leukemia has 3 phases.         - Chronic phase     - Accelerated phase     - Blastic phase

    