4.某骨髓分化不良症候群(myelodysplastic syndrome, MDS)病患檢查結果只發現 chromosome 5q deletion 的染色體變異，則該病患的預後為何？
(A)good
(B)intermediate
(C)poor
(D)very poor

骨髓分化不良症候群myelodyspla...