A.溃疡 B.疼痛 C.冷感 D.间歇性跛行
A.16%~35% B.18%~40% C.25%~50% D.30%~60%
A.28.5%和71.5% B.31.1%和68.9% C.34.6%和65.4% D.41.2%和58.8%