Chronic lower back pain is common.
慢性下背痛极为常见。
There are two main forms of lower back pain: acute and chronic.
下背部的疼痛发主要有两种类型：急性和慢性。
It is a also common factor in lower back pain and other chronic painful conditions.
它还常见于腰痛或其他的慢性疼痛。
It is a also common factor in lower back pain and other chronic painful conditions.
它还常见于腰痛或其他的慢性疼痛。
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