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本组男6例,女2例,年龄2(5/12)～12岁,其中8岁前7例.病变位于胸段4例,腰段4例,其中脊
The group of 6 males and 2 females, age 2 (5/12) to 12 years, of which 7 cases before the age of 8. Lesions in the thoracic in 4 cases, lumbar in 4 cases, of which ridges