Now Andrew Parsa, a neurosurgeon at the University of California at San Francisco, has developed a treatment that could add years to patients' lives.
2
它是由加利福尼亚州旧金山的一位医生所写的。
It was written by a doctor in San Francisco, California.
3
旧金山加州大学外科医生莫曼奈尼博士说：“如果你的核心肌群比较虚弱，那么仅仅坐直是不够的。”
"It's not enough to just sit up straight if your core muscles are weak," said Dr. Praveen Mummaneni, a spine surgeon at the University of California, San Francisco.
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