A.骨質疏松癥 B.休門病 C.強直性脊柱炎 D.脊柱結核 E.增生性脊柱炎
A.≤-2.5 B.≤-1.5 C.≤-2 D.≤-1 E.≤-3
A.90% B.80% C.70% D.60% E.50%