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| In 70% of children begin to manifest symptom in 4 years. Symptoms always worse with age, in the growth process, and some neurological impairment may be irreversible. | |
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| Various disorders, tumors, hair growth, dimples, or discoloration of the skin; loin Pain in the legs or lower back; Difficulty walking; Bed-wetting; Deformities of the legs and feet. | |
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| The operation can be displayed even when mild symptoms as neurological function lost can not be recovered even after operation. | |
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