Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) DOLK-congenital disorder of glycosylation ?
    ### Response:
    DOLK-congenital disorder of glycosylation (DOLK-CDG, formerly known as congenital disorder of glycosylation type Im) is an inherited condition that often affects the heart but can also involve other body systems. The pattern and severity of this disorder's signs and symptoms vary among affected individuals.
    