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什么是脊髓空洞症，其机制和后果，和治疗？
What is syringomyelia, its mechanisms and consequences, and treatments?
youdao
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什么是骨质疏松症，其机制和后果，以及如何扭转？
What is osteoporosis, its mechanisms and consequences, and ways to reverse it?
youdao
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什么是骨质疏松症，其机制和后果，以及如何扭转？
What is osteoporosis, its mechanisms and consequences, and ways to reverse it?
youdao