What are the risk factors for developing graft versus host disease in acute myeloid leukemia patients?

What are the risk factors for developing graft versus host disease in acute myeloid leukemia patients?
BETA - What is a PET/CT scan? How can a PET/CT scan help monitor myeloma?
BETA - What is the role of Magnetic Resonance Imaging (MRI) in diagnosing and monitoring myeloma and smoldering myeloma?
BETA - What is a CT scan or a whole body low dose CT (WBLD-CT) scan? When are they used in myeloma diagnosis and monitoring?
BETA - What imaging modalities are used to detect lytic and focal lesions?
BETA - How long does it take to see a response to myeloma therapy?
BETA - What is the serum free light chain test?
What are the common mutations in AML and how those different mutations affect to treatments?
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BETA - What is the quantitative immunoglobulin test?
What blood tests are used to track response to anti- myeloma treatment?
BETA - What blood tests are used to track response to anti- myeloma treatment?
BETA - How do doctors track myeloma treatment response?
What are genetic mutations and how do they relate to AML?