A.50% B.65% C.75% D.90%
A.成年后發(fā)病 B.兒童型僅累及四肢 C.表現(xiàn)為全身廣泛分布的硬斑 D.累及下肢時(shí)可伴有隱形脊柱裂
A.80% B.90% C.50% D.30%