Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Shwachman-Diamond syndrome ?
    ### Response:
    Shwachman-Diamond syndrome is an inherited condition that affects many parts of the body, particularly the bone marrow, pancreas, and skeletal system.  The major function of bone marrow is to produce new blood cells. These include red blood cells, which carry oxygen to the body's tissues; white blood cells, which fight infection; and platelets, which are necessary for normal blood clotting.
    