Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Chronic Myeloproliferative Neoplasms ?
    ### Response:
    Key Points
                    - Myeloproliferative neoplasms are a group of diseases in which the bone marrow makes too many red blood cells, white blood cells, or platelets.     - There are 6 types of chronic myeloproliferative neoplasms.    - Tests that examine the blood and bone marrow are used to detect (find) and diagnose chronic myeloproliferative neoplasms.
    